Three-colour photography:
three-colour printing and the production of photographic pigment pictures in natural colours.
By Arthur freiherrn [!] von Hübl ... Tr. by Henry Oscar Klein.

APA Citation

Hübl, A., Klein, H. Oscar. (1904). Three-colour photography: three-colour printing and the production of photographic pigment pictures in natural colours. London: A. W. Penrose & co..

MLA Citation

Hübl, Arthur, Freiherr von, 1853-1932, and Henry Oscar Klein. Three-colour Photography: Three-colour Printing And the Production of Photographic Pigment Pictures In Natural Colours. London: A. W. Penrose & co., 1904.

Warning: These citations may not always be complete (especially for serials).