Cita APA (7th ed.)

Hill, C., & Davidson, B. (1973). Subsistence U.S.A. Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Hill, Carol, i Bruce Davidson. Subsistence U.S.A. New York, USA: Holt, Rinehart and Winston, 1973.

Cita MLA (9th ed.)

Hill, Carol, i Bruce Davidson. Subsistence U.S.A. Holt, Rinehart and Winston, 1973.