APA استشهاد

Machinery handbook. (1979). Machinery handbook: A reference book for mechanical engineer, draftsman, toolmaker and mechanist (21st ed.). Industrial press.

استشهاد بنمط شيكاغو

Machinery handbook. Machinery Handbook: A Reference Book for Mechanical Engineer, Draftsman, Toolmaker and Mechanist. 21st ed. New York: Industrial press, 1979.

MLA استشهاد

Machinery handbook. Machinery Handbook: A Reference Book for Mechanical Engineer, Draftsman, Toolmaker and Mechanist. 21st ed. Industrial press, 1979.