@BOOK{NAP19, author = "National Research Council", title = "The Effect of Genetic Variance on Nutritional Requirements of Animals: Proceedings of a Symposium", isbn = "978-0-309-02342-9", doi = "10.17226/19", url = "https://nap.nationalacademies.org/catalog/19/the-effect-of-genetic-variance-on-nutritional-requirements-of-animals", year = 1975, publisher = "The National Academies Press", address = "Washington, DC" }