Παραπομπή σε μορφή APA (7η εκδ.)

Ketchum, M. S. Structural engineers handbook: Data for the design and construction of steel bridges and buildigs.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ketchum, Milo S. Structural Engineers Handbook: Data for the Design and Construction of Steel Bridges and Buildigs.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ketchum, Milo S. Structural Engineers Handbook: Data for the Design and Construction of Steel Bridges and Buildigs.