Cita APA (7th ed.)

Townsend, C. (1988). Understanding C. H.W. Sams.

Cita Chicago (17th ed.)

Townsend, Carl. Understanding C. Indianapolis, Ind: H.W. Sams, 1988.

Cita MLA (9th ed.)

Townsend, Carl. Understanding C. H.W. Sams, 1988.