APA (7th ed.) Citation

Sharmat, M. W., & Obligado, L. (1982). The best valentine in the world. Holiday House.

Chicago Style (17th ed.) Citation

Sharmat, Marjorie Weinman, and Lilian Obligado. The Best Valentine in the World. New York: Holiday House, 1982.

MLA (9th ed.) Citation

Sharmat, Marjorie Weinman, and Lilian Obligado. The Best Valentine in the World. Holiday House, 1982.

Warning: These citations may not always be 100% accurate.