Cita APA

Townsend, P. D. K. (1973). Colour centres and imperfections in insulators and semiconductors.

Chicago Edition Citation

Townsend, P D; Kelly. Colour Centres and Imperfections in Insulators and Semiconductors. Chatto & Windus, London, 1973.

Cita MLA

Townsend, P D; Kelly. Colour Centres and Imperfections in Insulators and Semiconductors. 1973.