APA (7th ed.) Citation

Fickett, A. P., Gellings, C. W., & Lovins, A. B. Efficient uses of energy.

Chicago Style (17th ed.) Citation

Fickett, Arnold P., Clerk W. Gellings, and Amory B. Lovins. Efficient Uses of Energy.

MLA (9th ed.) Citation

Fickett, Arnold P., et al. Efficient Uses of Energy.