APA (7th ed.) Citation

(1999). The Life force: Facing challenges. National Textbook Co.

Chicago Style (17th ed.) Citation

The Life Force: Facing Challenges. Lincolnwood, Ill: National Textbook Co, 1999.

MLA (9th ed.) Citation

The Life Force: Facing Challenges. National Textbook Co, 1999.

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