共 21 条
[11]
MILNE CM, 1976, T ASAE, V19, P749
[12]
ROBBINS JWD, 1972, J WATER POLLUT CON F, V44, P1536
[13]
ATYPICAL ESCHERICHIA-COLI IN STREAMS
[J].
APPLIED AND ENVIRONMENTAL MICROBIOLOGY,
1981, 41 (05)
:1276-1278
[14]
SCHEPERS JS, 1980, J WATER POLLUT CON F, V52, P711
[16]
BOTTOM SEDIMENT - A RESERVOIR OF ESCHERICHIA-COLI IN RANGELAND STREAMS
[J].
JOURNAL OF RANGE MANAGEMENT,
1982, 35 (01)
:119-123
[18]
1969, ANN GRAZING STATISTI
[19]
1975, STANDARD METHODS EXA
[20]
1979, AGR STATISTICS 1979