APA (7e ed.) Bronvermelding

AARON, B., & AARON, A. (1991). Upgrading PCS made easy. Osborne McGraw-Hill.

Chicago (17e ed.) Bronvermelding

AARON, Bud, en Alex AARON. Upgrading PCS Made Easy. Berkeley: Osborne McGraw-Hill, 1991.

MLA (9e ed.) Bronvermelding

AARON, Bud, en Alex AARON. Upgrading PCS Made Easy. Osborne McGraw-Hill, 1991.