Cita APA (7th ed.)

Schuller, R. (1946). Living positively one day at a time. New York international bible society.

Cita Chicago (17th ed.)

Schuller, Robert. Living Positively One Day at a Time. New York: New York international bible society, 1946.

Cita MLA (9th ed.)

Schuller, Robert. Living Positively One Day at a Time. New York international bible society, 1946.