APA (7th ed.) Citation

Berle, A. K., & De Camp, L. S. (1959). Inventions, patents and their management. Van Nostrand Comp.

Chicago Style (17th ed.) Citation

Berle, Alf K., and L. Sprague De Camp. Inventions, Patents and Their Management. Princeton [u.a.]: Van Nostrand Comp, 1959.

MLA (9th ed.) Citation

Berle, Alf K., and L. Sprague De Camp. Inventions, Patents and Their Management. Van Nostrand Comp, 1959.