共 9 条
[1]
AGARWAL HC, 1986, WATER AIR SOIL POLL, V28, P89
[3]
*COMM EUR COMM, 1980, OFF J EUR COMMUN L, V229, P11
[5]
GUPTA PK, 1986, INTER PRINT PUBLISHE, P12
[6]
NAYAK AK, 1995, B ENVIRON CONTAM TOX, V54, P68, DOI 10.1007/BF00196271
[7]
SINHA AK, 1991, GANGA SCI STUDY, P125
[9]
*WHO, 1984, GUID DRINK WAT QUAL, V2, P190