APA

Davies G. M., . (1919). Monographs on mineral resources with special reference to the British Empire. London: J.Murray.

Chicago

Davies George M, . 1919. Monographs on mineral resources with special reference to the British Empire. London: J.Murray.

Harvard

Davies G. M., . (1919). Monographs on mineral resources with special reference to the British Empire. London: J.Murray.

MLA

Davies George M, . Monographs on mineral resources with special reference to the British Empire. London: J.Murray. 1919.