Needham, James. G.
A guide to the study of fresh water biology - Fifth edition. - San Francisco Holden day 1962 - x, 108 p. ill. 23 cm.
0816263108
Freshwater biology
Aquatic insects
Freshwater organisms
577.6 / NEE
A guide to the study of fresh water biology - Fifth edition. - San Francisco Holden day 1962 - x, 108 p. ill. 23 cm.
0816263108
Freshwater biology
Aquatic insects
Freshwater organisms
577.6 / NEE