APA (7th ed.) Citation

Pei, M. (1968). The New World Spanish-English and English-Spanish dictionary. New American Library.

Chicago Style (17th ed.) Citation

Pei, Mario. The New World Spanish-English and English-Spanish Dictionary. New York: New American Library, 1968.

MLA (9th ed.) Citation

Pei, Mario. The New World Spanish-English and English-Spanish Dictionary. New American Library, 1968.