Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (1948). Report and Short Papers. Institute of Freshwater Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Report and Short Papers. Drottningholm, Suecia: Institute of Freshwater Research, 1948.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Report and Short Papers. Institute of Freshwater Research, 1948.

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