共 41 条
[21]
NITROGEN CIRCULATION AND NITRATE IN GROUNDWATER IN AN AGRICULTURAL CATCHMENT IN SOUTHERN INDIA
[J].
ENVIRONMENTAL GEOLOGY,
1983, 5 (02)
:61-64
[23]
LEBLANC DR, 1987, 86481 US GEOL SURV O
[24]
LeBlanc DR, 1984, 2218 US GEOL SURV WA
[25]
LEBLANC DR, 1984, 84475 US GEOL SURV O
[30]
RAGONE S E, 1975, Ground Water, V13, P17, DOI 10.1111/j.1745-6584.1975.tb03061.x