APA aipamena

Bank al-Markazī al-Yamanī. Research Dept. Foreign trade statistics of Yemen Arab Republic. Central Bank of Yemen. Research Dept.

Chicago Style aipamena

Bank al-Markazī al-Yamanī. Research Dept. Foreign Trade Statistics of Yemen Arab Republic. Sana'a: Central Bank of Yemen. Research Dept.

MLA aipamena

Bank al-Markazī al-Yamanī. Research Dept. Foreign Trade Statistics of Yemen Arab Republic. Central Bank of Yemen. Research Dept.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.