Παραπομπή σε μορφή APA (7η εκδ.)

Snow, T. P., & Bennett, J. O. (1991). Study guide to accompany The dynamic universe an introduction to astronomy (4th edition.). West Publishing Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Snow, Theodore P., και Jeffrey O. Bennett. Study Guide to Accompany The Dynamic Universe an Introduction to Astronomy. 4th edition. St. Paul: West Publishing Company, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Snow, Theodore P., και Jeffrey O. Bennett. Study Guide to Accompany The Dynamic Universe an Introduction to Astronomy. 4th edition. West Publishing Company, 1991.