Sladen, F. W. (1912). The humble-bee: Its life-history and how to domesticate it ; with description of all the British species of Bombus and Psithyrus. Macmillan.
Chicago-Zitierstil (17. Ausg.)Sladen, Frederick W. The Humble-bee: Its Life-history and How to Domesticate It ; with Description of All the British Species of Bombus and Psithyrus. London: Macmillan, 1912.
MLA-Zitierstil (9. Ausg.)Sladen, Frederick W. The Humble-bee: Its Life-history and How to Domesticate It ; with Description of All the British Species of Bombus and Psithyrus. Macmillan, 1912.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.