Não informado. (1990). Aquatic Sciences and Fisheries Abstracts. Cambridge Scientific Abstracts.
Chicago-viite (17. p.)Não informado. Aquatic Sciences and Fisheries Abstracts. Bethesda, Md: Cambridge Scientific Abstracts, 1990.
MLA-viite (8. p.)Não informado. Aquatic Sciences and Fisheries Abstracts. Cambridge Scientific Abstracts, 1990.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.