Cita APA (7th ed.)

Roberts, P. (1956). Patterns of English. Harcourt, Brace.

Cita Chicago (17th ed.)

Roberts, Paul. Patterns of English. New York: Harcourt, Brace, 1956.

Cita MLA (9th ed.)

Roberts, Paul. Patterns of English. Harcourt, Brace, 1956.