Cita APA

(1997). A giude to backyard astronomy: Your guide to starhopping and exploring the universe. San Francisco: Gog city press.

Chicago Style Citation

A Giude to Backyard Astronomy: Your Guide to Starhopping and Exploring the Universe. San Francisco: Gog city press, 1997.

Cita MLA

A Giude to Backyard Astronomy: Your Guide to Starhopping and Exploring the Universe. San Francisco: Gog city press, 1997.