000 00427nam a2200157Ia 4500
008 230524s9999 xx 000 0 und d
050 _aQTO TC409.F21
100 _aGeyik, M. P.
245 0 _aFAO watershed management field manual: gully control based on the work of M.P. Geyik
260 _aRome
260 _c1986
300 _avi, 56p.
300 _c30cm.
942 _2Library of Congress Classification
942 _cBook
999 _c8300
_d8300