Hehner Eric C R Practical theory of programming - New York Springer Verlag 1993 - 243p. cm. - Texts and monographs in computer science . ISBN: 3540941061 (Berlin) 0387941061 (New York) Standard No.: 2548 Source: Textual Subjects--Topical Terms: ProgrammingComputer Science Dewey Class. No.: D65,8(B)92, N3