@book{bhlitem58277, title = {Bethlehem structural shapes, bulletin no. 13 }, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/58277}, note = {https://www.biodiversitylibrary.org/bibliography/18639}, publisher = {New York, Consolidated Steel Corp, [1920]}, author = {Bethlehem Steel Company}, year = {}, pages = {192}, }