000 00305nam a2200121Ia 4500
008 220615s9999||||xx |||||||||||||| ||und||
020 _a9781840000000
245 0 _aHumic Substances
546 _aEnglish[eng]
700 _aMakan, Abdelhadi
856 _uhttps://www.intechopen.com/books/10590
942 _cEB
999 _c7492
_d7492