Cita APA (7th ed.)

Skurka, N., & Naar, J. (1976). Design for a limited planet: Living with natural energy. Ballantine Books.

Cita Chicago (17th ed.)

Skurka, Norma, i Jon Naar. Design for a Limited Planet: Living with Natural Energy. New York: Ballantine Books, 1976.

Cita MLA (9th ed.)

Skurka, Norma, i Jon Naar. Design for a Limited Planet: Living with Natural Energy. Ballantine Books, 1976.