Cita APA (7th ed.)
Duncan, R., Boughn, M., & Coleman, V. (2011). The H.D. book. University of California Press.
Cita Chicago (17th ed.)
Duncan, Robert, Michael Boughn, i Victor Coleman. The H.D. Book. Berkeley: University of California Press, 2011.
Cita MLA (9th ed.)
Duncan, Robert, et al. The H.D. Book. University of California Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.