Darwin, C. (1881). The formation of vegetable mould through the action of worms: With observations on their habits. Murray.
Chicago-Zitierstil (17. Ausg.)Darwin, Charles. The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their Habits. London: Murray, 1881.
MLA-Zitierstil (9. Ausg.)Darwin, Charles. The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their Habits. Murray, 1881.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.