Gaya APA

Company, M, B. (1977). McGraw Hill Encyclopedia of science & technology. Volume 4 (dac ens) (1977). : New York : McGraw-Hill Book Company,.

Gaya MLA

Company, McGraw-Hill, Book. "McGraw Hill Encyclopedia of science & technology. Volume 4 (dac ens)". 1977 : New York : McGraw-Hill Book Company,, 1977. Text.