Chemical environment in the aquatic habitat. : Proceedings of an I.B.P.-symposium held in Amsterdam and Nieuwersluis 10-16 October 1966. [electronic resource] / Edited by H. L. Golterman and R. S. Clymo.. — Amsterdam, : Noord-Hollandsche U.M.,, 1967 [1968]. — 324 p., 2 p. of photos., fold. l. 25 cm.