West, G. S. A treatise on the British freshwater algae / By G. S. West and F. E. Fritsch - London : Stechert-Hafner, 1927 - xvii, 534 p. : ill. ; 22 cm. - Bibliotheca phycologica ; . 3 . Subjects--Topical Terms: British GuianaGuyanaFreshwater algae--Great Britain Dewey Class. No.: 589.30942