Gaya APA

Norris, C, H., Wilbur, J, B. (1976). Elementary structural analysis (3rd ed.). Koyakusha: McGraw-Hill.

Gaya MLA

Norris, Charles, Head., Wilbur, John, Benson. "Elementary structural analysis". 3rd ed. Koyakusha: McGraw-Hill, 1976. Text.