Gaya APA

Jastron, R., Thomson, M. (1984). Astronomy : fundamentals frontiers (4th.ed.). New York: John Wiley \\n Sons.

Gaya MLA

Jastron, Robert., Thomson, Malcom. "Astronomy : fundamentals frontiers". 4th.ed. New York: John Wiley \\n Sons, 1984. Text.