APA (7th ed.) Citation

Penrose, E. T. (1973). The economics of the international patent system. Greenwood Press.

Chicago Style (17th ed.) Citation

Penrose, Edith Tilton. The Economics of the International Patent System. Westport, Conn: Greenwood Press, 1973.

MLA (9th ed.) Citation

Penrose, Edith Tilton. The Economics of the International Patent System. Greenwood Press, 1973.

Warning: These citations may not always be 100% accurate.