APA citiranje

Gessmann, C., & Wood, B. (2002). Potassium in the Earth's core?

Chicago Style (17th ed.) Citation

Gessmann, C., and B. Wood. Potassium in the Earth's Core? 2002.

MLA citiranje

Gessmann, C., and B. Wood. Potassium in the Earth's Core? 2002.