TY  - BOOK
TI  - Roofing
T2  - Wheels of learning
SN  - 0134626648
U1  - 695 
PY  - 1996///
CY  - Upper Saddle River, N.J.
PB  - Prentice Hall
KW  - Roofing
KW  - Building
KW  - Programmed instruction
KW  - Roofs
ER  -