APA (7th ed.) Citation

Friedman, R. L., Arjona, D. K., & Carvajal, E. P. (1930). Spanish, book one [--two]. Scott.

Chicago Style (17th ed.) Citation

Friedman, Rose Lovenhart, Doris King Arjona, and Esther Prez Carvajal. Spanish, Book One [--two]. Chicago: Scott, 1930.

MLA (9th ed.) Citation

Friedman, Rose Lovenhart, et al. Spanish, Book One [--two]. Scott, 1930.