TY  - BOOK
AU  - Helfer,Jacques R.
AU  - Helfer,Jacques R.
TI  - How to know the grasshoppers, crickets, cockroaches, and their allies
SN  - 0486253953 (pbk.)
AV  - REF QL507.1.U6 H45 1987
U1  - 595.7/26 19
PY  - 1987///
CY  - New York
PB  - Dover Publications
KW  - Orthoptera
KW  - United States
KW  - Insects
N1  - "An enlarged republication of the second (1972) edition of How to know the grasshoppers, cockroaches and their allies."; Includes index
ER  -