APA (7th ed.) Citation

Würthner, R. (1958). Gradus ad Parnassum. Hohner.

Chicago Style (17th ed.) Citation

Würthner, Rudolf. Gradus Ad Parnassum. Trossingen: Hohner, 1958.

MLA (8th ed.) Citation

Würthner, Rudolf. Gradus Ad Parnassum. Hohner, 1958.

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