00366cam a22001451 4500 DLC 574 BLA 1948 A023 Or. Welch, Paul Smith, Limnological methods. Philadelphia, Blakiston Co. [1948] xviii, 381 p. illus. 24 cm. Freshwater biology Limnology. EK 16209 16209 0 0 0 574_000000000000000_BLA_1948_A023_OR 0 70238 LBA LBA A023 2018-01-23 574 BLA 1948 A023 Or. A23359 2018-01-23 2018-01-23 EK