APA (7th ed.) Citation

Radlauer, R., & Zillmer, R. (1981). Volcanoes. Childrens Press.

Chicago Style (17th ed.) Citation

Radlauer, Ruth, and Rolf Zillmer. Volcanoes. Chicago: Childrens Press, 1981.

MLA (9th ed.) Citation

Radlauer, Ruth, and Rolf Zillmer. Volcanoes. Childrens Press, 1981.

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