APA

Wagenheim K., . (1975). Reading exercises on the history and culture of Puerto Rico. Elgin, Ill: The Continental Press, Inc.

Chicago

Wagenheim Kal, . 1975. Reading exercises on the history and culture of Puerto Rico. Elgin, Ill: The Continental Press, Inc.

Harvard

Wagenheim K., . (1975). Reading exercises on the history and culture of Puerto Rico. Elgin, Ill: The Continental Press, Inc.

MLA

Wagenheim Kal, . Reading exercises on the history and culture of Puerto Rico. Elgin, Ill: The Continental Press, Inc. 1975.