Citazione APA

Berle, A. K., & Camp, L. S. d. (1959). Inventions, patents, and their management. D. Van nostrand company.

Stile di citazione Chicago

Berle, Alf K., e L. Sprague de Camp. Inventions, Patents, and Their Management. London: D. Van nostrand company, 1959.

Citazione MLA

Berle, Alf K., e L. Sprague de Camp. Inventions, Patents, and Their Management. D. Van nostrand company, 1959.