APA

Huebener T., . (1960). Puerto Rico today. New York: Henry Holt.

Chicago

Huebener Theodore, . 1960. Puerto Rico today. New York: Henry Holt.

Harvard

Huebener T., . (1960). Puerto Rico today. New York: Henry Holt.

MLA

Huebener Theodore, . Puerto Rico today. New York: Henry Holt. 1960.