APA استشهاد

Land, R. B., & Robinson, D. W. (1985). Genetics of reproduction in sheep. Butterworths.

استشهاد بنمط شيكاغو

Land, R. B., و D. W. Robinson. Genetics of Reproduction in Sheep. London ; Boston: Butterworths, 1985.

MLA استشهاد

Land, R. B., و D. W. Robinson. Genetics of Reproduction in Sheep. Butterworths, 1985.