APA Edition Citation

Chappell, W. R. A., & Petersen, K. K. (1976). Molybdenum in the environment.

Chicago Edition Citation

Chappell, Willaarf R. And, and Kathy Kellog Petersen. Molybdenum in the Environment. 1976.

MLA Edition Citation

Chappell, Willaarf R. And, and Kathy Kellog Petersen. Molybdenum in the Environment. 1976.

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