共 9 条
[3]
BLOOM DE, 1988, UNPUB LABOR MARKET E
[4]
HELLINGER FJ, 1988, PUBLIC HEALTH REP, V103, P309
[5]
KHALILI A, 1988, COMMUNICATION JUN
[6]
NICKENS N, 1988, COMMUNICATION NOV
[7]
RIECKEN H, 1974, SOCIAL EXPT METHOD
[8]
SCITOVSKY AA, 1987, PUBLIC HEALTH REP, V102, P5
[9]
*US CTR DIS CONTR, 1988, AIDS WEEKL SURV REP