Cita APA (7a ed.)

Oyster, C. K. (2000). Groups: A user's guide. McGraw-Hill.

Cita Chicago Style (17a ed.)

Oyster, Carol K. Groups: A User's Guide. Boston: McGraw-Hill, 2000.

Cita MLA (9a ed.)

Oyster, Carol K. Groups: A User's Guide. McGraw-Hill, 2000.