APA (7th ed.) Citation

Snow, T. P. (1991). The dynamic universe: An introduction to astronomy (4th edition.). West Publishing Company.

Chicago Style (17th ed.) Citation

Snow, Theodore P. The Dynamic Universe: An Introduction to Astronomy. 4th edition. St. Paul: West Publishing Company, 1991.

MLA (8th ed.) Citation

Snow, Theodore P. The Dynamic Universe: An Introduction to Astronomy. 4th edition. West Publishing Company, 1991.