APA (7th ed.) Citation

Gretler, R. Z. Otto Nauer (ca. 1990).

Chicago Style (17th ed.) Citation

Gretler, Roland: Zürich. Otto Nauer (ca. 1990).

MLA (8th ed.) Citation

Gretler, Roland: Zürich. Otto Nauer (ca. 1990).

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