Cita APA (7a ed.)

Kiphuth, J., & Kieran, J. (1942). How to be fit. Yale University.

Cita Chicago Style (17a ed.)

Kiphuth, John, y John Kieran. How to Be Fit. New Haven: Yale University, 1942.

Cita MLA (8a ed.)

Kiphuth, John, y John Kieran. How to Be Fit. Yale University, 1942.