APA (7th ed.) Citation

Drengson, A. R. (1989). Beyond environmental crisis: From technocrat to planetary person. Lang.

Chicago Style (17th ed.) Citation

Drengson, Alan R. Beyond Environmental Crisis: From Technocrat to Planetary Person. New York u.a: Lang, 1989.

MLA (9th ed.) Citation

Drengson, Alan R. Beyond Environmental Crisis: From Technocrat to Planetary Person. Lang, 1989.