APA aipamena

(1990). XIII. Symposium on Operations Research: Proceedings. Frankfurt am Main: Hain.

Chicago Style aipamena

XIII. Symposium On Operations Research: Proceedings. Frankfurt am Main: Hain, 1990.

MLA aipamena

XIII. Symposium On Operations Research: Proceedings. Frankfurt am Main: Hain, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.