APA (7th ed.) Citation

Stordal, E. A., & Ruoff, P. (1986). Determination of calcium ion in oil-based drilling fluids by use of an ion-selective electrode.

Chicago Style (17th ed.) Citation

Stordal, Einar A., and Peter Ruoff. Determination of Calcium Ion in Oil-based Drilling Fluids by Use of an Ion-selective Electrode. Stavanger, 1986.

MLA (9th ed.) Citation

Stordal, Einar A., and Peter Ruoff. Determination of Calcium Ion in Oil-based Drilling Fluids by Use of an Ion-selective Electrode. 1986.