Cita APA (7a ed.)

Causey, W. F. (2020). John Houbolt: The Unsung Hero of the Apollo Moon Landings. Purdue University Press.

Cita Chicago Style (17a ed.)

Causey, William F. John Houbolt: The Unsung Hero of the Apollo Moon Landings. West Lafayette, Indiana: Purdue University Press, 2020.

Cita MLA (8a ed.)

Causey, William F. John Houbolt: The Unsung Hero of the Apollo Moon Landings. Purdue University Press, 2020.