Verkuyl, H. J. On the compositional nature of the aspects / by H. J. Verkuyl - Dordrecht : D. Reidel, c1972 - xiii, 185 p. ; 25 cm. - Foundations of language. Supplementary series ; v.15 . Includes bibliographical references and index ISBN: 9027702276 : PND 53.00 Subjects--Topical Terms: Grammar, Comparative and general--Aspect Dewey Class. No.: 425