APA (7th ed.) Citation

Zoehfeld, K. W. (2012). Rocks And Minerals Level 2. National Geographic Society.

Chicago Style (17th ed.) Citation

Zoehfeld, Kathleen Weidner. Rocks And Minerals Level 2. USA: National Geographic Society, 2012.

MLA (9th ed.) Citation

Zoehfeld, Kathleen Weidner. Rocks And Minerals Level 2. National Geographic Society, 2012.

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