APA Citation

Pettiford, R. (2019). Metamorphic rocks. Minneapolis, MN: Pogo.

Chicago Style Citation

Pettiford, Rebecca. Metamorphic Rocks. Minneapolis, MN: Pogo, 2019.

MLA Citation

Pettiford, Rebecca. Metamorphic Rocks. Minneapolis, MN: Pogo, 2019.

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