TY  - BOOK
AU  - Glassberg,Jeffrey
TI  - Butterflies through binoculars: a filed guide to butterflies in the Boston-New York-Washington region 
SN  - 0195079825
PY  - 1993///
CY  - New York
PB  - Oxford University Press
KW  - Butterflies
KW  - Northeastern States
KW  - Identification
KW  - Butterfly watching
N1  - Includes bibliographical references and index
ER  -