共 18 条
[11]
THE CASCADE IMPACTOR - AN INSTRUMENT FOR SAMPLING COARSE AEROSOLS
[J].
JOURNAL OF SCIENTIFIC INSTRUMENTS,
1945, 22 (10)
:187-195
[12]
PARK PO, 1967, LOAN PESTICIDES CHEM
[13]
STEEL WS, 1958, 7 INT SCIENT COMM TR, P247
[14]
TOIT RD, 1954, ONDERSTEPOORT J VET, V26, P317
[15]
Trapnell C., 1947, VEGETATION SOIL MAP
[16]
WILD H, 1967, VEGETATION MAP FLO S
[18]
YEO D., 1960, BULL ENT RES, V51, P631, DOI 10.1017/S0007485300055206