APA Citation

Marden, O. S. (2006). The secret of achievement. Batu Caves, Selangor: Masterpiece.

Chicago Style Citation

Marden, Orison Swett. The Secret of Achievement. Batu Caves, Selangor: Masterpiece, 2006.

MLA Citation

Marden, Orison Swett. The Secret of Achievement. Batu Caves, Selangor: Masterpiece, 2006.

Warning: These citations may not always be 100% accurate.