TY  - BOOK
ED  - National Clay Pipe Institute (U.S.)
ED  - Clay Products Association, Chicago.
TI  - Clay pipe engineering manual
AV  - TP839 .C48 1974
U1  - 363.7284 CLA 
PY  - 1978///]
CY  - Crystal Lake
PB  - National Clay Pipe Institute
KW  - Pipe, Clay
KW  - Handbooks, manuals, etc
KW  - Drainage
N1  - Published in 1953 by the body under an earlier name: Clay Products Association; H.B
ER  -