共 21 条
[1]
*AM I PUBL OP, 1970, 57 GALL OP IND
[2]
BEALE CL, 1974, J SOIL WATER CONSERV, V29, P23
[3]
BEALE CL, 1972, COMMISSION POPULATIO, V5, P665
[4]
*COMM POP GROWTH A, 1972, POP AM FUT
[5]
DILLMAN DA, 1972, 764 WASH STAT U WASH
[6]
FUGUITT GV, 1971, RURAL SOCIOL, V36, P449
[7]
HANSEN NM, 1973, FUTURE NONMETROPOLIT
[8]
HANSEN NM, 1970, RURAL POVERTY URBAN
[9]
KING BF, 1972, 1972 NORC PROBABILIT
[10]
LEE ES, 1971, ORNLHUD3