APA استشهاد

Smith Keith A. (2018). Soil and Environmental Analysis: Physical Methods (Second.). Marcel Dekker.

استشهاد بنمط شيكاغو

Smith Keith A. Soil and Environmental Analysis: Physical Methods. Second. NewYork: Marcel Dekker, 2018.

MLA استشهاد

Smith Keith A. Soil and Environmental Analysis: Physical Methods. Second. Marcel Dekker, 2018.