Cita APA (7th ed.)

Green, W., & Clough, D. (1982). Regional problems and policies. Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Green, W., i Danny Clough. Regional Problems and Policies. London: Holt, Rinehart and Winston, 1982.

Cita MLA (8th ed.)

Green, W., i Danny Clough. Regional Problems and Policies. Holt, Rinehart and Winston, 1982.