Vallentyne, J. R. (1974). The algal bowl: Lakes and man. Dept. of the Environment, Fisheries and Marine Services.
Chicago-viite (17. p.)Vallentyne, John R. The Algal Bowl: Lakes and Man. Ottawa: Dept. of the Environment, Fisheries and Marine Services, 1974.
MLA-viite (9. p.)Vallentyne, John R. The Algal Bowl: Lakes and Man. Dept. of the Environment, Fisheries and Marine Services, 1974.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.