Citazione Stile APA (7a Edizione)

Zimmerman, L. J. (1965). Poor lands, rich lands: The widening gap. Random House.

Citazione stile Chigago Style (17a edizione)

Zimmerman, Louis Jacques. Poor Lands, Rich Lands: The Widening Gap. New York: Random House, 1965.

Citatione MLA (9a ed.)

Zimmerman, Louis Jacques. Poor Lands, Rich Lands: The Widening Gap. Random House, 1965.