Παραπομπή APA

Kristjonsoon, H. (1971). Fish finding,Purse seining aimed trawling. Fishing News.

Παραπομπή Chicago Style

Kristjonsoon, Hilmar. Fish Finding,Purse Seining Aimed Trawling. London: Fishing News, 1971.

Παραπομπή MLA

Kristjonsoon, Hilmar. Fish Finding,Purse Seining Aimed Trawling. Fishing News, 1971.