Cita APA

Welchons, A. M., Krickenberger, W. R., & Pearson, H. R. (1960). Second course complete (Revised edition.). Boston: Ginn and Company.

Citación estilo Chicago

Welchons, Alvin M., William R. Krickenberger, y Helen R. Pearson. Second Course Complete. Revised edition. Boston: Ginn and Company, 1960.

Cita MLA

Welchons, Alvin M., William R. Krickenberger, y Helen R. Pearson. Second Course Complete. Revised edition. Boston: Ginn and Company, 1960.