Simonsen, John Lionel, 1884- The terpenes / Volume IV : The Triterpenes and Their Derivatives Hydrocarbons, Alcohols, Hydroxy-aldehydes, Ketones and Hydroxy-Ketones by J. L. Simonsen and W. C. L. Ross - Cambridge : The University Press, 1957 - ix, 524p. ; ill. ; 23 cm. Includes Index Subjects--Topical Terms: Terpenes. Dewey Class. No.: 547.29 / SIT 1957