Dyfyniad APA

Ball James W., Blaine McCleske R., & U.S. Geological Survey. A new cation-exchange method for accurate field speciation of hexavalent chromium.

Dyfyniad Arddull Chicago

Ball James W., Blaine McCleske R., and U.S. Geological Survey. A New Cation-exchange Method for Accurate Field Speciation of Hexavalent Chromium.

Dyfyniad MLA

Ball James W., et al. A New Cation-exchange Method for Accurate Field Speciation of Hexavalent Chromium.

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