APA način citiranja

Hela, I., & Laevastu, T. (1961). Fisheries hydrograph. Fishing news.

Čikaški stil citiranja

Hela, Ilmo, i Taivo Laevastu. Fisheries Hydrograph. London: Fishing news, 1961.

MLA način citiranja

Hela, Ilmo, i Taivo Laevastu. Fisheries Hydrograph. Fishing news, 1961.