APA aipamena

Zimmern, H. (1889). The Hansa towns. Unwin.

Chicago Style aipamena

Zimmern, Helen. The Hansa Towns. London: Unwin, 1889.

MLA aipamena

Zimmern, Helen. The Hansa Towns. Unwin, 1889.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.