Putney, M. J. (2019). Once a spy.
Chicago Style (17th ed.) CitationPutney, Mary Jo. Once a Spy. 2019.
MLA引文Putney, Mary Jo. Once a Spy. 2019.
警告：這些引文格式不一定是100％准確.
APA引文
Putney, M. J. (2019). Once a spy.
Chicago Style (17th ed.) CitationPutney, Mary Jo. Once a Spy. 2019.
MLA引文Putney, Mary Jo. Once a Spy. 2019.