TY  - BOOK
AU  - Simmons,George Finlay
AU  - Krantz,Steven G.
TI  - Differential equations: theory, technique, and practice 
SN  - 0072863153 (acid-free paper)
PY  - 2007///
CY  - Boston
PB  - McGraw-Hill Higher Education
KW  - Differential equations
KW  - Textbooks
N1  - Includes bibliographical references and index
ER  -