RT Journal Article SR Electronic T1 AZALEAS and CONIFERS and RHODODENDRON HYBRIDS: A GUIDE TO THEIR ORIGINS JF Landscape Journal FD University of Wisconsin Press SP 92 OP 93 DO 10.3368/lj.6.1.92 VO 6 IS 1 A1 Peter J. Cummin YR 1987 UL http://lj.uwpress.org/content/6/1/92.abstract AB