Pond and marsh /
Whinray, James.
Imrie, Jean.
Hoed, G. den(Gerrit den)1907-Moerassen en plassenAdaptations
Dixon, Adrienne.
London A. and C. Black
1974
This adaptation originally published: 1972. - Translation and comprehensive adaptation of: 'Moerassen en plassen' / by G. den Hoed. Amsterdam : Moussault, 1970
Bibliography: p.58. - Includes index
Marsh ecology
Pond ecology