Cita APA (7th ed.)

Trimmer, J. F. (1995). Writing with a purpose (11th ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Trimmer, Joseph F. Writing with a Purpose. 11th ed. Boston: Houghton Mifflin, 1995.

Cita MLA (9th ed.)

Trimmer, Joseph F. Writing with a Purpose. 11th ed. Houghton Mifflin, 1995.