Proceedings of the eighth session of the Regional conference...held at Bangkok, Thailand, 18 to 25 Nov. 1968.

Some problems in establishing a national water policy door Leven, Charles L. 1928-

Managing the natural environment a regional plan for water, sewage, air and refuse.

Water door Leopold, Luna Bergere 1915-

The world of water door Walton, William Clarence

How to know the frewshwater algae. door Prescott, Gerald Webber 1899-

Fish and invertebrate culture water management in closed systems door Spotte, Stephen H.

Water resources systems engineering door Hall, Warren A.

Table of contents only

Aquatic chemistry an introduction emphasizing chemical equilibria in natural waters door Stumm, Werner 1924-

Water door Leopold, Luna B.