APA (7th ed.) Citation

Shipman, H. L. (1980). Black holes, quasars, and the universe (2. ed.). Houghton Mifflin.

Chicago Style (17th ed.) Citation

Shipman, Harry L. Black Holes, Quasars, and the Universe. 2. ed. Boston: Houghton Mifflin, 1980.

MLA (9th ed.) Citation

Shipman, Harry L. Black Holes, Quasars, and the Universe. 2. ed. Houghton Mifflin, 1980.

Warning: These citations may not always be 100% accurate.