Dyfyniad APA

Spongberg, A. L., & Witter, J. D. (2008). A review of PCB concentrations in tropical media, 1996-2007.

Dyfyniad Arddull Chicago

Spongberg, Alison L., y Jason D. Witter. A Review of PCB Concentrations in Tropical Media, 1996-2007. 2008.

Dyfyniad MLA

Spongberg, Alison L., y Jason D. Witter. A Review of PCB Concentrations in Tropical Media, 1996-2007. 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.