APA (7th ed.) Citation
Castillo, C., & Bond, O. L. (1972). the University of Chicago Spanish dictionary: Spanish -English English-Spanish (Revised ed.). Pocket Books.
Chicago Style (17th ed.) Citation
Castillo, Carlos, and Otto L. Bond. The University of Chicago Spanish Dictionary: Spanish -English English-Spanish. Revised ed. New York: Pocket Books, 1972.
MLA (9th ed.) Citation
Castillo, Carlos, and Otto L. Bond. The University of Chicago Spanish Dictionary: Spanish -English English-Spanish. Revised ed. Pocket Books, 1972.
Warning: These citations may not always be 100% accurate.