APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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