Cita APA (7th ed.)

Ray, S. (1993). The North -south economics: The growth divide of the world. Prentice hall of India.

Cita Chicago (17th ed.)

Ray, S. The North -south Economics: The Growth Divide of the World. delhi: Prentice hall of India, 1993.

Cita MLA (9th ed.)

Ray, S. The North -south Economics: The Growth Divide of the World. Prentice hall of India, 1993.