Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.