Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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