A treatise on light,
by R. A. Houston with two coloured plates and 340 diagrams.

APA Citation

Houstoun, R. Alexander. (1930). A treatise on light. 6th ed. London: Longmans, Green and co..

MLA Citation

Houstoun, Robert Alexander, 1883-. A Treatise On Light. 6th ed. London: Longmans, Green and co., 1930.

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