Water for freshwater fish culture /
text, A.G. Coche and H. van der Wal ; illustrations, T. Laughlin.
- Rome : [New York, N.Y. : Food and Agriculture Organization of the United Nations ; UNIPUB, distributor], 1981.
- 111 p. : ill. (some col.) ; 22 x 28 cm.
- Simple methods for aquaculture FAO training series ; 4 .