Roberts, P. (1956). Patterns of English. Harcourt, Brace.
Citación estilo ChicagoRoberts, Paul. Patterns of English. New York: Harcourt, Brace, 1956.
Cita MLARoberts, Paul. Patterns of English. Harcourt, Brace, 1956.
Warning: These citations may not always be 100% accurate.