Cita APA (7th ed.)

Wardnaugh, R., Carrillo, F. P. d., Hald Madsen, A., Matsui, T., Peterson, C., Steinbauer, J., . . . Williams, D. c. (1976). English for a changing world 1. Scott, Foresman and Company.

Cita Chicago (17th ed.)

Wardnaugh, Ronald, Felisa P. de Carrillo, A.J Hald Madsen, Tsukasa Matsui, Constance Peterson, Jo Steinbauer, Beth Stoffel, i Donald c. Williams. English for a Changing World 1. Nueva York: Scott, Foresman and Company, 1976.

Cita MLA (9th ed.)

Wardnaugh, Ronald, et al. English for a Changing World 1. Scott, Foresman and Company, 1976.