TY  - BOOK
AU  - Douglas J. Wilson
AU  -  S.O. Werner, 
TI  - Simplified roof framing. Ed 2
U1  - 695 
PY  - 1948///
CY  - Newyork
PB  - Mcgraw hill book Co. Inc
N1  - Douglas J. Wilson & S.O. Werner: Simplified roof framing. Ed 2.  (2nd Ed)  Newyork.  Mcgraw hill book Co. Inc, 1948.--(695WIL)
ER  -