Parfit, Derek. On what matters/ by Derek parfit and edited by Samuel Scheffler - New Delhi : Oxford University Press , 2011. - xlviii, 540p.: Ills., pictures ; 24cm. Includes index and references. ISBN: 9780199681037: GBP14.99 Subjects--Topical Terms: PHILOSOPHY Dewey Class. No.: 170 / PAR/O