APA-referens

Director, S. W., & Rohrer, R. A. Introduction to Systems Theory. McGraw-Hill Kogakusha Ltd.

Chicago-stil citat

Director, Stephen W., och Ronald A. Rohrer. Introduction to Systems Theory. Tokyo: McGraw-Hill Kogakusha Ltd.

MLA-referens

Director, Stephen W., och Ronald A. Rohrer. Introduction to Systems Theory. McGraw-Hill Kogakusha Ltd.