APA استشهاد

(1977). McGraw-Hill encyclopaedia of science and technology. McGraw-Hill.

استشهاد بنمط شيكاغو

McGraw-Hill Encyclopaedia of Science and Technology. New York: McGraw-Hill, 1977.

MLA استشهاد

McGraw-Hill Encyclopaedia of Science and Technology. McGraw-Hill, 1977.