Gardner, P. S. (1996). Instructor's manual to accompany. New York: St. Martin Press.
Chicago Style aipamenaGardner, Peter S. Instructor's Manual to Accompany. New York: St. Martin Press, 1996.
MLA aipamenaGardner, Peter S. Instructor's Manual to Accompany. New York: St. Martin Press, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.