APA (7th ed.) Citation

Zimmern, H. (2012). The Hansa Towns. Project Gutenberg.

Chicago Style (17th ed.) Citation

Zimmern, Helen. The Hansa Towns. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Zimmern, Helen. The Hansa Towns. Project Gutenberg, 2012.

Warning: These citations may not always be 100% accurate.