共 59 条
[21]
Fossum M.T., 1977, Economic Trends and Projections for Commercial Floriculture: United States, 1951-1986
[22]
FOSSUM MT, 1973, TRENDS COMMERCIAL S
[23]
FOSTER R S, 1977, Technology Review (Cambridge), V79, P29
[24]
GLOECKNER FC, 1974, GLOECKNER CHRYSANTHE
[26]
HEDRICK UP, 1950, HISTORY HORTICULTURE
[28]
HILLS FJ, 1975, PLANT DIS REP, V59, P513
[29]
HIMELICK EB, 1976, NE22 US DEP AGR FOR, P113
[30]
HOITINK HAJ, 1974, PLANT DIS REP, V58, P650