APA (7th ed.) Citation

Fraprie, F. R., & Hammond, A. (1938). How to make enlargements. American photographic publishing co..

Chicago Style (17th ed.) Citation

Fraprie, Frank Roy, and Arthur Hammond. How to Make Enlargements. Boston, Mass.: American photographic publishing co., 1938.

MLA (9th ed.) Citation

Fraprie, Frank Roy, and Arthur Hammond. How to Make Enlargements. American photographic publishing co., 1938.