TY  - BOOK
AU  - Collinge,Robert A.
AU  - Ayers,Ronald M.
TI  - Economics by design: survey & issues 
SN  - 0131400584 (pbk. : alk. paper)
PY  - 2004///
CY  - Upper Saddle River, N.J.
PB  - Pearson Prentice Hall
KW  - Economics
N1  - Includes bibliographical references and index
ER  -