APA (7th ed.) Citation

Koli, L. (1969). Geographical variation of Cottus gobio L. (Pisces, Cottidae) in Northern Europe. [Tekijä].

Chicago Style (17th ed.) Citation

Koli, Lauri. Geographical Variation of Cottus Gobio L. (Pisces, Cottidae) in Northern Europe. Hki: [Tekijä], 1969.

MLA (8th ed.) Citation

Koli, Lauri. Geographical Variation of Cottus Gobio L. (Pisces, Cottidae) in Northern Europe. [Tekijä], 1969.