APA (7th ed.) Citation

Vetter, H. Wieviel düngen? DLG.-Verl.

Chicago Style (17th ed.) Citation

Vetter, H. Wieviel Düngen? Frankfurt (Main): DLG.-Verl.

MLA (9th ed.) Citation

Vetter, H. Wieviel Düngen? DLG.-Verl.

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