@BOOK{NAP1670, title = "Nutritional Energetics of Domestic Animals and Glossary of Energy Terms", isbn = "978-0-309-03127-1", doi = "10.17226/1670", url = "https://nap.nationalacademies.org/catalog/1670/nutritional-energetics-of-domestic-animals-and-glossary-of-energy-terms", year = 1981, publisher = "The National Academies Press", address = "Washington, DC" }