Ackley, K. A. c. (2009). Perspectives on contemporary issues: Readings across the disciplines (Fifth edition.). Wadsworth Cengage Learning.
Chicago Style aipamenaAckley, Katherine Anne compiler. Perspectives on Contemporary Issues: Readings Across the Disciplines. Fifth edition. Australia: Wadsworth Cengage Learning, 2009.
MLA aipamenaAckley, Katherine Anne compiler. Perspectives on Contemporary Issues: Readings Across the Disciplines. Fifth edition. Wadsworth Cengage Learning, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.