APA استشهاد

Smithells, C. J. E. b. (1976). Metals reference book (Ed.5.). Butterworths.

استشهاد بنمط شيكاغو

Smithells, Colin J Ed. by. Metals Reference Book. Ed.5. London: Butterworths, 1976.

MLA استشهاد

Smithells, Colin J Ed. by. Metals Reference Book. Ed.5. Butterworths, 1976.