APA (7th ed.) Citation

Marden, O. S. (1945). Energía mental. Tor.

Chicago Style (17th ed.) Citation

Marden, Orison Swett. Energía Mental. Buenos Aires: Tor, 1945.

MLA (9th ed.) Citation

Marden, Orison Swett. Energía Mental. Tor, 1945.

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