(1987). Parasites of sheep. New Jersey: Merck co.
Trích dẫn kiểu ChicagoParasites of Sheep. New Jersey: Merck co, 1987.
MLA引文Parasites of Sheep. New Jersey: Merck co, 1987.
警告:这些引文格式不一定是100%准确.
(1987). Parasites of sheep. New Jersey: Merck co.
Trích dẫn kiểu ChicagoParasites of Sheep. New Jersey: Merck co, 1987.
MLA引文Parasites of Sheep. New Jersey: Merck co, 1987.