APA (7th ed.) Citation

Nahas, G. G. (1976). Keep off the grass: A scientist's documented account of marijuana's destructive effects.

Chicago Style (17th ed.) Citation

Nahas, Gabriel G. Keep off the Grass: A Scientist's Documented Account of Marijuana's Destructive Effects. 1976.

MLA (9th ed.) Citation

Nahas, Gabriel G. Keep off the Grass: A Scientist's Documented Account of Marijuana's Destructive Effects. 1976.

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