Brown, A. L. (1971). Ecology of fresh water. Heinemann Educational Book.
Citazione stile Chigago Style (17a edizione)Brown, Alison Leadley. Ecology of Fresh Water. London: Heinemann Educational Book, 1971.
Citatione MLA (9a ed.)Brown, Alison Leadley. Ecology of Fresh Water. Heinemann Educational Book, 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.