Gaya APA

H, G, J, E., Gaylord, C, N, (. (1992). Design of Steel Structures, 3rd Edition . United States of America: McGraw-Hill Book Company.

Gaya MLA

H, Gaylord, Jr,, Edwin., Gaylord, Charles, N, (a.o). "Design of Steel Structures, 3rd Edition". United States of America: McGraw-Hill Book Company, 1992. Text.