The observer's sky atlas : with 50 stars charts covering the entire sky
MLA
Karkoschka, Erich. The Observer's Sky Atlas: with 50 Stars Charts Covering the Entire Sky. 2nd ed. New York: Springer, 1999
APA, 7th edition
Karkoschka, E. (1999). The observer's sky atlas: with 50 stars charts covering the entire sky. 2nd ed. New York: Springer
Chicago, 17th edition
Karkoschka, Erich. The observer's sky atlas: with 50 stars charts covering the entire sky. 2nd ed. New York: Springer, 1999