Gaya APA

Bauer, W. (1972). Metal Statistics, 1971 - 1981, 69th-ed. . Frankfurt: Metallgesellschaft, A.G..

Gaya MLA

Bauer, Willy. "Metal Statistics, 1971 - 1981, 69th-ed.". Frankfurt: Metallgesellschaft, A.G., 1972. Text.