共 5 条
[1]
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[2]
FREY BS, 1972, PUBLIC CHOICE, V13, P119
[3]
Milbrath L., 1965, POLITICAL PARTICIPAT
[4]
TOLLISON RD, 1973, PUBLIC CHOICE, V16
[5]
*US INT REV SERV, 1974, STAT INC 1972 IND IN