APA (7th ed.) Citation

Friedman, R. L., Carvajal, E. P., Arjona, D. K., & Allen, P. S. (1936). Spanish, book one-. Scott.

Chicago Style (17th ed.) Citation

Friedman, Rose Lovenhart, Esther Perez Carvajal, Doris King Arjona, and Philip Schuyler Allen. Spanish, Book One-. Chicago: Scott, 1936.

MLA (9th ed.) Citation

Friedman, Rose Lovenhart, et al. Spanish, Book One-. Scott, 1936.