Sandars, E. (1939). A butterfly book for the pocket: Including all species to be found in the British isles, with life-sized coloured plates and life histories. London: Oxford University Press.

Sandars, Edmund. A Butterfly Book for the Pocket: Including All Species to Be Found in the British Isles, With Life-sized Coloured Plates and Life Histories. London: Oxford University Press, 1939.

Sandars, Edmund. A Butterfly Book for the Pocket: Including All Species to Be Found in the British Isles, With Life-sized Coloured Plates and Life Histories. London: Oxford University Press, 1939.