Warr, P.B. (2001). Age and work behaviour: Physical attributes, cognitive abilities, knowledge, personality traits and motives. In C.L. Cooper and I.T. Robinson (eds.), International Review of Industrial and Organizational Psychology, 16, 1-36.

Warren, N. (2000). U.S. regulations for work organization. Occupational Medicine: State-of-the-Art Reviews, 15(1), 275-280.

Weckerle, J.R., and Shultz, K.S. (1999). Influences on the bridge employment decision among older USA workers. Journal of Occupational and Organizational Psychology, 72, 317-329.

Weisberg, M. (1993). Ergonomic guidelines for designing effective and healthy learning environments for interactive technologies. Interpersonal Computing and Technology: An Electronic Journal for the 21st Century. ISSN 1064-4326. Vol 1, No. 2. Available: http://tlc.nlm.nih.gov/resources/publications/ergo/ergonomics.html [accessed June 21, 2002].

Welford, A.T. (1958). Aging and human skills. London: Oxford University Press.

Westgaard, R.H., and Winkel, J. (1997). Ergonomic intervention research for improved musculoskeletal health: A critical review. International Journal of Industrial Ergonomics, 20, 463-500.

Williams, C.M. (2002). Using medications appropriately in older adults. American Family Physician, 66(10), 1917-1924.

Williams, R.A., and Strasser, P.B. (1999). Depression in the workplace. Impact on employees. American Association of Occupational Health Nurses Journal, 47(11), 526-537.

Willis, S.L., and Schaie, K.W. (1986). Training the elderly on the ability factors of spatial orientation and inductive reasoning. Psychology and Aging, 1, 239-247.

Winfield, F.E. (1987). Workplace solutions for women under eldercare pressure. Personnel, 64(7), 31-39.

Yassi, A., Cooper, J.E., Tate, R.B., Gerlach, S., Muir, M., Trottier, J., and Massey, K. (2001). A randomized controlled trial to prevent patient lift and transfer injuries of health care workers. Spine, 26, 1739-1746.

Zwerling, C., Sprince, N.L., Wallace, R.B., Davis, C.S., and Whitten, P.S. (1996). Alcohol and occupational injuries among older workers. Accident Analysis and Prevention, 28(3), 371-376.

Zwerling, C., Sprince, N.L., Davis, C.S., Whitten, P.S., Wallace, R.R., and Heeringa, S.G. (1998a). Occupational injuries among older workers with disabilities: A prospective cohort study of the Health and Retirement Survey, 1992-1994. American Journal of Public Health, 88(11), 1691-1695.

Zwerling, C., Whitten, P.S., Davis, C.S., and Sprince, N.L. (1998b). Occupational injuries among older workers with visual, auditory, and other impairments: A validation study. Journal of Occupational and Environmental Medicine, 40(8), 720-723.

National Research Council. (2001). Preparing for an Aging World: The case for Cross-National Research. Panel on a Research Agenda and New Data for an Aging World, Committee on Population, and Committee on National Statistics. Washington, DC: National Academy Press.