Calvert, Peter. A study of revolution. - Oxford, Clarendon P., 1970. Bibliography: p. [223]-235. ISBN: 0198271778 60/- LCCN: 73563588 Nat. Bib. No.: B70-29685 Subjects--Topical Terms: Revolutions. LC Class. No.: JC491 / .C24 Dewey Class. No.: 322/.42