APA استشهاد

Leaver, . J. D. (1983). Milk production: Science and practice. Longman.

استشهاد بنمط شيكاغو

Leaver, J D. Milk Production: Science and Practice. London: Longman, 1983.

MLA استشهاد

Leaver, J D. Milk Production: Science and Practice. Longman, 1983.