共 8 条
[1]
BUSH CR, 1967, ANPA NEWS RESEA 1206
[2]
PARKER E, 1966, PATTERNS ADULT INFOR
[3]
Rivera, 1965, VOLUNTEERS LEARNING
[4]
SCHRAMM, KNOWLEDGE PUBLIC MIN, pCH2
[5]
SCHRAMM W, 1967, KNOWLEDGE PUBLIC MIN
[6]
SWINEHART JW, 1966, VOLUNTARY EXPOSURE H
[7]
TICHENOR PJ, 1965, THESIS STANFORD U
[8]
*U MICH SURV RES C, 1958, PUBL IMP SCI MASS ME