ebrary, Inc. (1986). Nutrient requirements of cats (Rev. ed.). National Academy Press.
Cita Chicago (17th ed.)ebrary, Inc. Nutrient Requirements of Cats. Rev. ed. Washington, D.C.: National Academy Press, 1986.
Cita MLA (9th ed.)ebrary, Inc. Nutrient Requirements of Cats. Rev. ed. National Academy Press, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.