APA استشهاد

Schuller, R. H. Success in never ending failure is never final. Orient Paperbacks.

استشهاد بنمط شيكاغو

Schuller, Robert H. Success in Never Ending Failure Is Never Final. New Delhi: Orient Paperbacks.

MLA استشهاد

Schuller, Robert H. Success in Never Ending Failure Is Never Final. Orient Paperbacks.