00000cam a22000004i 4500 UP-99796217611882643 Buklod 20151210124343.0 m o j ta 770919s1975 xx a rb |100 0|eng d 9022005526 (iLib)UPD-00252007441 DLC DML eng S 598 H85 Humic substances, their structure and function in the biosphere proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972 editors, D. Povoledo and H. L. Golterman ; [sponsored by the International Biological Program]. Wageningen Centre for Agricultural Pub. and Documentation 1975. 368 p. ill. Label mounted on t.p.: Sole distributor in the U.S. and Canada: International Book Services, Portland, Or. Includes bibliographies. Humus Congresses. Soil biology Congresses. Limnology Congresses. Humic acid Congresses. Povoledo, D. (Domenico). Golterman, H. L. International Biological Programme. FO Monograph UPD DMLS S 598 H85 Book