Cita APA (7a ed.)

Tapper, T. (1911). Efficiency: Its Spiritual Source. Platt & Peck Co..

Cita Chicago Style (17a ed.)

Tapper, Thomas. Efficiency: Its Spiritual Source. New York: Platt & Peck Co., 1911.

Cita MLA (9a ed.)

Tapper, Thomas. Efficiency: Its Spiritual Source. Platt & Peck Co., 1911.