APA (7th ed.) Citation

Lester, H., & Munsinger, L. (1985). It wasn't my fault. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Lester, Helen, and Lynn Munsinger. It Wasn't My Fault. Boston: Houghton Mifflin, 1985.

MLA (9th ed.) Citation

Lester, Helen, and Lynn Munsinger. It Wasn't My Fault. Houghton Mifflin, 1985.