Dyfyniad APA

Lessmark, O. (1983). Competition between perch (Perca fluviatilis) and roach (Rutilus rutilus) in south Swedish lakes.

Dyfyniad Arddull Chicago

Lessmark, Olof. Competition Between Perch (Perca Fluviatilis) and Roach (Rutilus Rutilus) in South Swedish Lakes. 1983.

Dyfyniad MLA

Lessmark, Olof. Competition Between Perch (Perca Fluviatilis) and Roach (Rutilus Rutilus) in South Swedish Lakes. 1983.

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