A preliminary survey of freshwater snails of Ormoc City, Leyte di Barja, Neda R.

Preliminary pages only

Zooplankton community analysis studies on a tropical system di Lewis, William M. Jr

A compositional, phytogeographical and elementary structural analysis of the phytoplankton in a tropical lake Lake Lanao, Philippines di Lewis, William Madison

Methods for assessment of fish production in fresh waters di Bagenal, Timothy

Fresh-water invertebrates of the United States di Pennak, Robert W. (Robert William)

Freshwater invertebrates of the United States di Pennak, Robert W.

Ecology of freshwater fish production

McClane's field guide to freshwater fishes of North America di McClane, Albert Jules, 1922-

Methods for assessment of fish production in freshwater

Practicum activities at the freshwater aquaculture center Munoz, Nueva Ecija di Bongco, Ireneo G.