Cita APA (7a ed.)

Little, R. T. (1986). Astrophotography: A step by step approach. Macmillan.

Cita Chicago Style (17a ed.)

Little, Robert T. Astrophotography: A Step by Step Approach. New York, etc.: Macmillan, 1986.

Cita MLA (9a ed.)

Little, Robert T. Astrophotography: A Step by Step Approach. Macmillan, 1986.