APA استشهاد

Stobbs, G. A. (2002). Business method patents. Aspen publishers.

استشهاد بنمط شيكاغو

Stobbs, Gregory A. Business Method Patents. New York: Aspen publishers, 2002.

MLA استشهاد

Stobbs, Gregory A. Business Method Patents. Aspen publishers, 2002.