Não informado. (1975). Hydrobiological bulletin. Netherlands Hydrobiological Society.
Chicagoスタイル(17版)引用形式Não informado. Hydrobiological Bulletin. Amsterdam: Netherlands Hydrobiological Society, 1975.
MLA(8版)引用形式Não informado. Hydrobiological Bulletin. Netherlands Hydrobiological Society, 1975.
警告: この引用は必ずしも正確ではありません.