Kehew, A. E. (2006). Geology for engineers and environmental scientists (3. bs.). Upper Saddle River, N.J.: Prentice Hall.
استشهاد بنمط شيكاغوKehew, Alan E. Geology for Engineers and Environmental Scientists. 3. bs. Upper Saddle River, N.J.: Prentice Hall, 2006.
MLA استشهادKehew, Alan E. Geology for Engineers and Environmental Scientists. 3. bs. Upper Saddle River, N.J.: Prentice Hall, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.