Raymond, F., Shepperson, G., & Waltham, R. (1978). Forage conservation and feeding (3a. ed.). Farming Press.
Cita Chicago (17th ed.)Raymond, Frank, Gordon Shepperson, i Richard Waltham. Forage Conservation and Feeding. 3a. ed. Ipswich: Farming Press, 1978.
Cita MLA (9th ed.)Raymond, Frank, et al. Forage Conservation and Feeding. 3a. ed. Farming Press, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.