APA (7th ed.) Citation

Adler, D. A., & Miller, L. (1991). Christopher Columbus: Great explorer. Holiday House.

Chicago Style (17th ed.) Citation

Adler, David A., and Lyle Miller. Christopher Columbus: Great Explorer. New York: Holiday House, 1991.

MLA (9th ed.) Citation

Adler, David A., and Lyle Miller. Christopher Columbus: Great Explorer. Holiday House, 1991.