Παραπομπή APA

Arny, T. T. (2004). Explorations: An introduction to astronomy (3rd ed.). McGraw-Hill-Higher education.

Παραπομπή Chicago Style

Arny, Thomas T. Explorations: An Introduction to Astronomy. 3rd ed. Boston: McGraw-Hill-Higher education, 2004.

Παραπομπή MLA

Arny, Thomas T. Explorations: An Introduction to Astronomy. 3rd ed. McGraw-Hill-Higher education, 2004.