na INLIS000000000056384 20221008125818 0010-1022000210 221008 g d eng Limnology / Paul S. Welch WELCH, Paul S. [New York, Toronto, London] : McGraw-Hill Book Company, Inc., 1952 ix, 538 p. : ill. ; 24 cm. 551.312 551.312 WEL l Ed. 2 LIMNOLOGY BOTANY ZOOLOGY bibl.: p. 443-510 index: p. 511-538 280/73