Project Aqua : a source book of inland waters proposed for conservation /
compiled by H. Luther, J. Rzóska.
- London : International Biological Programme ; Oxford : Blackwell, 1971.
- xiii, 239 p. : il.
- IBP Handbooks / International Biological Programme ; n. 21 Occasional papers / International Union for Conservation of Nature and Natural Resources ; n. 2 .
- IBP handbook ; 21. IUCN occasional paper ; no. 2. .
"Sponsored by International Biological Programme (IBP), Societas Internationalis Limnologiae ...International Union for Conservation of Nature and Natural Resources [IUCN)".