APA

Arny T. T., Schneider S. E., . (2010). Explorations: introduction to astronomy. New York: McGraw Hill.

Chicago

Arny Thomas T, Schneider Stephen E, . 2010. Explorations: introduction to astronomy. New York: McGraw Hill.

Harvard

Arny T. T., Schneider S. E., . (2010). Explorations: introduction to astronomy. New York: McGraw Hill.

MLA

Arny Thomas T, Schneider Stephen E, . Explorations: introduction to astronomy. New York: McGraw Hill. 2010.