01059pam a2200325 a 4500 4771108 000 20150721091818.0 000 000 000 86029322 0486253953 (pbk.) UOEL DLC DLC n-us--- REF QL507.1.U6 H45 1987 595.7/26 19 Helfer, Jacques R. How to know the grasshoppers, crickets, cockroaches, and their allies / by Jacques R. Helfer. Dover ed. New York : Dover Publications, c1987. vii, 363 p. : ill. ; 22 cm. "An enlarged republication of the second (1972) edition of How to know the grasshoppers, cockroaches and their allies." Includes index. Orthoptera United States. Insects United States. Helfer, Jacques R. How to know the grasshoppers, cockroaches and their allies. 7 cbc orignew 1 ocip 19 y-gencatlg lcc REF 11890 11890 0 0 lcc 0 0 UOE UOE REF 2015-07-20 0 REF QL507.1.U6 H45 1987 10057033 2015-07-20 00:00:00 10057033 2015-07-20 REF 0 0 lcc 0 0 UOE UOE REF 2015-07-20 0 REF QL507.1.U6 H45 1987 10057032 2015-07-20 00:00:00 10057032 2015-07-20 REF 0 0 lcc 0 0 UOE UOE REF 2015-07-20 0 REF QL507.1.U6 H45 1987 10057034 2015-07-20 00:00:00 10057034 2015-07-20 REF