共 30 条
[1]
Alexandersson G., 1956, IND STRUCTURE AM CIT
[2]
BEALE CL, 1974, J SOIL WATER CONSERV, V29, P26
[3]
BERRY BJL, 1961, PRZEGLAD GEOGRAFICZN, V33, P263
[4]
GIBSON LJ, 1975, ARIZONA REV, V24, P1
[5]
GIBSON LJ, 1975, J AM IND DEV COUNCIL, V10, P7
[8]
HART JF, 1955, ANN ASS AM GEOGRAPHE, V45, P272
[9]
ISARD W, 1960, METHODS REGIONAL ANA, P199