Citazione Stile APA (7a Edizione)

Kaufmann, W. J. (1977). Astronomy: The structure of the universe. Macmillan Publishing Co., Inc. ; Collier Macmillan Publishers.

Citazione stile Chigago Style (17a edizione)

Kaufmann, William J. Astronomy: The Structure of the Universe. New York : London: Macmillan Publishing Co., Inc. ; Collier Macmillan Publishers, 1977.

Citatione MLA (9a ed.)

Kaufmann, William J. Astronomy: The Structure of the Universe. Macmillan Publishing Co., Inc. ; Collier Macmillan Publishers, 1977.