Legget, R. F., & Hatheway, A. W. (1988). Geology and Engineering. New York: McGraw-Hill.
استشهاد بنمط شيكاغوLegget, Robert F., و Allen W. Hatheway. Geology and Engineering. New York: McGraw-Hill, 1988.
MLA استشهادLegget, Robert F., و Allen W. Hatheway. Geology and Engineering. New York: McGraw-Hill, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.