(1969). Prefaces and prologues. New York: P.F. Collier & Son corporation.
Trích dẫn kiểu ChicagoPrefaces and Prologues. New York: P.F. Collier & Son corporation, 1969.
MLA引文Prefaces and Prologues. New York: P.F. Collier & Son corporation, 1969.
警告:這些引文格式不一定是100%准確.