000 00280 a2200121 4500
080 _a581.413.4
_bW 858 P
245 1 _aPhloem
_cby F.B.P. Wooding
260 _bOxford University Press
_c1971
650 _aPhloem
100 1 _aWooding, F.B.P.
_d
300 _a15 p.
901 _a109937
999 _c34576
_d34576