APA ציטוט

Duffy, S. J., & Vanloon, G. W. (2004). Environmental chemistry a Global perspective.

Chicago Edition Citation

Duffy, Stephen J., and Gary W. Vanloon. Environmental Chemistry a Global Perspective. NewDelhi, Oxford, 2004.

ציטוט MLA

Duffy, Stephen J., and Gary W. Vanloon. Environmental Chemistry a Global Perspective. 2004.