Cita APA (7a ed.)

Crowther, J. (1944). Famous american men of science: Thomas Alva Edison-Josiah Willard Gibbs. Penguin Books.

Cita Chicago Style (17a ed.)

Crowther, J.G. Famous American Men of Science: Thomas Alva Edison-Josiah Willard Gibbs. New York: Penguin Books, 1944.

Cita MLA (8a ed.)

Crowther, J.G. Famous American Men of Science: Thomas Alva Edison-Josiah Willard Gibbs. Penguin Books, 1944.