APA-referens (7:e uppl.)

Naugle, J. E. (1991). First among equals: The selection of NASA space science experiments. National Aeronautics and Space Administration (NASA).

Chicago-referens (17:e uppl.)

Naugle, John E. First Among Equals: The Selection of NASA Space Science Experiments. Washington, DC: National Aeronautics and Space Administration (NASA), 1991.

MLA-referens (9:e uppl.)

Naugle, John E. First Among Equals: The Selection of NASA Space Science Experiments. National Aeronautics and Space Administration (NASA), 1991.