APA (7th ed.) Citation

Holdren, J. P., & Herrera, P. (1971). Energy: A crisis in power. Sierra Club.

Chicago Style (17th ed.) Citation

Holdren, John P., and Philip Herrera. Energy: A Crisis in Power. San Francisco: Sierra Club, 1971.

MLA (9th ed.) Citation

Holdren, John P., and Philip Herrera. Energy: A Crisis in Power. Sierra Club, 1971.