共 32 条
[3]
Branden L., 1995, BUR CENS 1995 ANN RE, P129
[5]
FITZGERALD J, 1994, C ATT LOND SURV
[6]
GRITZ RM, 1994, C ATT LONG SURV
[7]
Groves R., 1989, SURVEY ERRORS SURVEY
[8]
Groves R.M., 1979, SURVEYS TELEPHONE NA