Dyfyniad APA

Boltz, D. F., & Howell, J. A. (1978). Colorimetric determination of non metals. Wiley Eastern.

Dyfyniad Arddull Chicago

Boltz, David F., and James A. Howell. Colorimetric Determination of Non Metals. Toronto: Wiley Eastern, 1978.

Dyfyniad MLA

Boltz, David F., and James A. Howell. Colorimetric Determination of Non Metals. Wiley Eastern, 1978.

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