Larsen, G. H. (1990). Mastering harvard graphics. Perfect Bound Pub.
Cita Chicago (17th ed.)Larsen, Glenn Harold. Mastering Harvard Graphics. Quezon City: Perfect Bound Pub, 1990.
Cita MLA (9th ed.)Larsen, Glenn Harold. Mastering Harvard Graphics. Perfect Bound Pub, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.