APA
Walker S., Straw H., . (1962). Spectroscopy : ultra violet, visible, infra red and raman spectroscopy. London: Chapman&hall.
Chicago
Walker S, Straw H, . 1962. Spectroscopy : ultra violet, visible, infra red and raman spectroscopy. London: Chapman&hall.
Harvard
Walker S., Straw H., . (1962). Spectroscopy : ultra violet, visible, infra red and raman spectroscopy. London: Chapman&hall.
MLA
Walker S, Straw H, . Spectroscopy : ultra violet, visible, infra red and raman spectroscopy. London: Chapman&hall. 1962.