Παραπομπή APA

Stobbs, G. A. (2007). Business method patents: 2007 cummulative supplement. Aspen publishers.

Παραπομπή Chicago Style

Stobbs, Gregory A. Business Method Patents: 2007 Cummulative Supplement. New York: Aspen publishers, 2007.

Παραπομπή MLA

Stobbs, Gregory A. Business Method Patents: 2007 Cummulative Supplement. Aspen publishers, 2007.