Cita APA

Van Duyn J. (1975). practical system and procedures manual. Reston publishing co.

Citación estilo Chicago

Van Duyn J. Practical System and Procedures Manual. Virginia: Reston publishing co, 1975.

Cita MLA

Van Duyn J. Practical System and Procedures Manual. Reston publishing co, 1975.

Warning: These citations may not always be 100% accurate.