Παραπομπή APA

Clark, W., & Howell, D. (1975). Energy for survival: The alternative to extinction. Garden City, N.Y: Anchor Press.

Παραπομπή Chicago Style

Clark, Wilson, and David Howell. Energy for Survival: The Alternative to Extinction. Garden City, N.Y: Anchor Press, 1975.

Παραπομπή MLA

Clark, Wilson, and David Howell. Energy for Survival: The Alternative to Extinction. Garden City, N.Y: Anchor Press, 1975.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.