APA

Lewis G. K., . (1968). Puerto Rico: freedom and power in the Caribbean. New York: Harper & Row.

Chicago

Lewis Gordon K, . 1968. Puerto Rico: freedom and power in the Caribbean. New York: Harper & Row.

Harvard

Lewis G. K., . (1968). Puerto Rico: freedom and power in the Caribbean. New York: Harper & Row.

MLA

Lewis Gordon K, . Puerto Rico: freedom and power in the Caribbean. New York: Harper & Row. 1968.