Gray, G. R. (1869). Hand-List of Genera and Species of Birds, distinguishing those contained in the British Museum: By George Robert Gray. Printed by order of the Trustees.
Chicago-Zitierstil (17. Ausg.)Gray, George Robert. Hand-List of Genera and Species of Birds, Distinguishing Those Contained in the British Museum: By George Robert Gray. London: Printed by order of the Trustees, 1869.
MLA-Zitierstil (9. Ausg.)Gray, George Robert. Hand-List of Genera and Species of Birds, Distinguishing Those Contained in the British Museum: By George Robert Gray. Printed by order of the Trustees, 1869.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.