Arnett, E. J. (1920). Gazetteer of Zaria Province. s.n.].
Chicago Style aipamenaArnett, Edward John. Gazetteer of Zaria Province. [S.l.: s.n.], 1920.
MLA aipamenaArnett, Edward John. Gazetteer of Zaria Province. s.n.], 1920.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.