APA Citation

Helldorfer, M., & Natchev, A. (1997). Harmonica night. New York: Atheneum Books for Young Readers.

Chicago Style Citation

Helldorfer, Mary-Claire, and Alexi Natchev. Harmonica Night. New York: Atheneum Books for Young Readers, 1997.

MLA Citation

Helldorfer, Mary-Claire, and Alexi Natchev. Harmonica Night. New York: Atheneum Books for Young Readers, 1997.

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