Williamson, R. B.
view article (9.9981365)
Installing ABS and PVC Drain, Waste, and Vent Systems in Fire-Resistant Buildings.
California Univ., Berkeley
Fire Journal,
Vol. 73,
No. 2,
36-45,
March 1979
UCB FRG 78-3,
National Fire Protection Association. Annual Meeting. May 17, 1977,
1979