APA引文

Chappell, M. N. (1949). Worry and its control. New York, N.Y.: Collier Books.

Trích dẫn kiểu Chicago

Chappell, Matthew N. Worry and Its Control. New York, N.Y.: Collier Books, 1949.

MLA引文

Chappell, Matthew N. Worry and Its Control. New York, N.Y.: Collier Books, 1949.

警告：這些引文格式不一定是100％准確.