Cita APA (7th ed.)

MacLaughlin, D., & Estrada, H. Structural steel drafting & design (2nd ed.).

Cita Chicago (17th ed.)

MacLaughlin, David, i Hector Estrada. Structural Steel Drafting & Design. 2nd ed.

Cita MLA (8th ed.)

MacLaughlin, David, i Hector Estrada. Structural Steel Drafting & Design. 2nd ed.

Atenció: Aquestes cites poden no estar 100% correctes.