TY  - BOOK
AU  - Bethlehem Structural Company
TI  - Bethlehem structural shapes: information and tables for architects, engineers and designers of buidings and other steel structures
AV  - TA 685 B5
PY  - 1938///
CY  - Bethlehem, Pa.
PB  - Bethlehem Steel
KW  - Acero de construcción
KW  - Catálogos
ER  -