TY - BOOK AU - Ziegler Carol A TI - Programming system methodologies T2 - Prentice Hall software series U1 - D65,8(B)92, M3 PY - 1983/// CY - Englewood PB - Cliffs Prentice-Hall KW - Computer science N1 - Bibliography 246-250p; Glossary 242-245p ER -