MLA

Davies, Martin. Paintings and Drawings On the Backs of National Gallery Pictures (london). London: Trustees of the National Gallery (Londen), 1946.

APA

Davies, M. (1946). Paintings and Drawings on the Backs of National Gallery Pictures (London). London: Trustees of the National Gallery (Londen).

Chicago

Davies, Martin Paintings and Drawings On the Backs of National Gallery Pictures (london). London: Trustees of the National Gallery (Londen), 1946.