APA引文

Papavizas, G. C. (1981). Beltsville symposia in agricultural research. London: Allanheld, Osmun Publishers.

Trích dẫn kiểu Chicago

Papavizas, George C. Beltsville Symposia in Agricultural Research. London: Allanheld, Osmun Publishers, 1981.

MLA引文

Papavizas, George C. Beltsville Symposia in Agricultural Research. London: Allanheld, Osmun Publishers, 1981.

警告：這些引文格式不一定是100％准確.