00975nam a2200277 a 4500 3453769 BD-DhUL 20141205122847.0 920109s1992 enka b 001 0 eng 92102476 0412329700 DLC DLC BD-DhUL QH96.8.E9 H37 1992 574.92 20 HAE Harper, David M. Eutrophication of freshwaters : rinciples, problems, and restoration / David Harper ; with a chapter on the Norfolk Broads by Geoff Phillips. 1st ed. London ; New York : Chapman & Hall, 1992. viii, 327 p. : ill. ; 24 cm. Includes bibliographical references (p. [279] -321) and index. Eutrophication. Eutrophication Control. 7 cbc orignew 2 ncip 19 y-gencatlg ddc BK ep67 01-09-92; ea36 to SCD 01-15-92; ff06 01-22-92; fp24 05-22-92 21641 21641 0 0 ddc 0 574_920000000000000_HAE 0 NFIC 41573 DUSL DUSL GEN 1994-06-15 Purchase 0.00 574.92 HAE 355359 2014-12-05 2014-12-05 BK