Style de citation APA

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

Style de citation Chicago

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

Style de citation MLA

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