@BOOK{NAP19882, author = "National Research Council", title = "Nutrient Requirements of Swine: Eighth revised edition, 1979", doi = "10.17226/19882", url = "https://nap.nationalacademies.org/catalog/19882/nutrient-requirements-of-swine-eighth-revised-edition-1979", year = 1979, publisher = "The National Academies Press", address = "Washington, DC" }