Cita APA (7th ed.)

Trimble, V. (1991). Visit to a small universe. The American Institute of Physics.

Cita Chicago (17th ed.)

Trimble, Virginia. Visit to a Small Universe. New York: The American Institute of Physics, 1991.

Cita MLA (9th ed.)

Trimble, Virginia. Visit to a Small Universe. The American Institute of Physics, 1991.