Cita APA (7a ed.)

Schweitzer, A., & Brabazon, J. (2005). Essential writings. Orbis Books.

Cita Chicago Style (17a ed.)

Schweitzer, Albert, y James Brabazon. Essential Writings. Maryknoll, NY: Orbis Books, 2005.

Cita MLA (9a ed.)

Schweitzer, Albert, y James Brabazon. Essential Writings. Orbis Books, 2005.