World Congress on Animal Feeding Madrid. (1972). 2nd World Congress on Animal Feeding: Spain, 23rd. - 28th. october 1972. Ind. Gráficas España.
Chicago-Zitierstil (17. Ausg.)World Congress on Animal Feeding Madrid. 2nd World Congress on Animal Feeding: Spain, 23rd. - 28th. October 1972. Madrid: Ind. Gráficas España, 1972.
MLA-Zitierstil (9. Ausg.)World Congress on Animal Feeding Madrid. 2nd World Congress on Animal Feeding: Spain, 23rd. - 28th. October 1972. Ind. Gráficas España, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.