APA aipamena

Bruun, P. (1981). Port engineering (Ed.3.). Gulf publishing company.

Chicago Style aipamena

Bruun, Per. Port Engineering. Ed.3. Houston: Gulf publishing company, 1981.

MLA aipamena

Bruun, Per. Port Engineering. Ed.3. Gulf publishing company, 1981.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.