Eldridge, E. H., Good, H. I., & Eldridge, F. B. (1943). Eldridge-Good Business speller and vocabulary builder. American Book Company.
Lua i Stíl Chicago (17ú heag.)Eldridge, Edward H., Harry I. Good, agus Florence B. Eldridge. Eldridge-Good Business Speller and Vocabulary Builder. New York: American Book Company, 1943.
Lua MLA (8ú heag.)Eldridge, Edward H., et al. Eldridge-Good Business Speller and Vocabulary Builder. American Book Company, 1943.
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