APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.