Gaya APA

Company, I, M, B. (1960). McGraw-Hill Encyclopedia of Science and Technology 6 gab - hys . USA: McGaw-ill Book Company.

Gaya MLA

Company, Internasional., McGraw-Hill, Book. "McGraw-Hill Encyclopedia of Science and Technology 6 gab - hys". USA: McGaw-ill Book Company, 1960. Lawas.