共 20 条
- [1] BOND RS, 1968, 572 U MASS AGR EXPT
- [2] BURCH WR, 1967, PNW48 USDA FOR SERV
- [3] BURDGE RJ, 1965, ANNUAL M AM SOC ASS
- [4] ETZKORN P, 1964, SOC SOCIAL RES, V48, P76
- [5] FINE IV, 1960, 3 U WISC SCH COMM WI, V1
- [6] Goffman Erving, 1973, PRESENTATION SELF EV
- [7] GREEN BL, 1966, 823 PURD U AGR EXPT
- [8] GREGERSON HM, 1965, AM FORESTS, V71, P19
- [9] HENDEE JC, 1968, PNW61 USDA FOR SERV
- [10] KING DA, 1968, FOREST SCI, V14, P45