APA (7th ed.) Citation

Günther, E. (1950). The essential oils. Von Nostrand.

Chicago Style (17th ed.) Citation

Günther, Ernst. The Essential Oils. Toronto [u.a.]: Von Nostrand, 1950.

MLA (9th ed.) Citation

Günther, Ernst. The Essential Oils. Von Nostrand, 1950.

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