Cita APA (7th ed.)

American Institute of Steel Construction. (1970). Manual of steel construction (7th ed.). National Book Store.

Cita Chicago (17th ed.)

American Institute of Steel Construction. Manual of Steel Construction. 7th ed. Manila: National Book Store, 1970.

Cita MLA (9th ed.)

American Institute of Steel Construction. Manual of Steel Construction. 7th ed. National Book Store, 1970.