00307nam a2200109 a 4500008004100000050001800041100001700059245006200076260003400138300001600172350000900188120416s1972    ||||||||||||||||| ||    u  aHT 169.C3 Pla  aGertler, L.O10aPlanning the Canadian environmentcedited by L.O. Gertler  aMontrealbHarvest Housec1972  a311p. : ill  a0.00