TY  - BOOK
AU  - Schefflan, Ralph,
TI  - Teach yourself the basics of Aspen Plus
SN  - 9780470567951
U1  - 660.2800113  
PY  - 2011///
CY  - New York
PB  - John Wiley & Sons
N1  - Includes bibliographical references and index
ER  -