Pond and marsh
Whinray, James.
Hoed, G. den(Gerrit den)1907-Moerassen en plassenAdaptations
London A. and C. Black
1972
Translation and comprehensive adaptation of 'Moerassen en plassen'/ by G. den Hoed. Amsterdam: Moussault, 1970
Bibliographyp.58. - Includes index
Marsh ecology.
Pond ecology.