共 10 条
[1]
BABCOCK LR, 1971, 138 M AM ASSOC ADV S, P15
[2]
DARLEY E. F., 1966, J AIR POLLUT CONTR ASS, V16, P685
[3]
DELL JD, 1968, J FOREST, V66, P610
[4]
DODGE M, 1966, J FOREST, V64, P98
[5]
FELDSTEIN M, 1963, J Air Pollut Control Assoc, V13, P542
[6]
Gerstle R W, 1967, J Air Pollut Control Assoc, V17, P324
[7]
PHILPOT CW, 1972, INT117 USDA FOR SERV, P14
[8]
1971, NATIONWIDE INVENTORY, P35
[9]
1969, AP51 US PUBL HLTH SE, P556
[10]
1970, AP62 US PUBL HLTH SE, P183