APA Style

Chaisson, Eric, McMillan, Steve. (1993). Astronomy today (1st ed). USA: Prentice-Hall.

Chicago Style

Chaisson, Eric, McMillan, Steve. Astronomy today. 1st ed USA: Prentice-Hall, 1993. Textbook.

MLA Style

Chaisson, Eric, McMillan, Steve. Astronomy today. 1st ed USA: Prentice-Hall, 1993. Textbook.

Turabian Style

Chaisson, Eric, McMillan, Steve. Astronomy today. 1st ed USA: Prentice-Hall, 1993. Textbook.