APA (7th ed.) Citation

Llowarch, W., & Woolnough, B. E. (1970). Using light. Longman.

Chicago Style (17th ed.) Citation

Llowarch, W., and B. E. Woolnough. Using Light. London: Longman, 1970.

MLA (9th ed.) Citation

Llowarch, W., and B. E. Woolnough. Using Light. Longman, 1970.