Citazione APA

Eldridge, E. H., Good, H. I., & Eldridge, F. B. (1943). Eldridge-Good Business speller and vocabulary builder. American Book Company.

Stile di citazione Chicago

Eldridge, Edward H., Harry I. Good, e Florence B. Eldridge. Eldridge-Good Business Speller and Vocabulary Builder. New York: American Book Company, 1943.

Citazione MLA

Eldridge, Edward H., et al. Eldridge-Good Business Speller and Vocabulary Builder. American Book Company, 1943.