A study of insects : 4-H Entomology Project
Barker, Paul C.
A study of insects : 4-H Entomology Project - Berkeley, Ca. : The University of California. Division of Agricultural Sciences, 1978 - 40 p. : ilus. - Leaflet ; 2949 . - Leaflet ; 2949 .
32-57
68909
Entomología económica.
Entomología sistemática.
A study of insects : 4-H Entomology Project - Berkeley, Ca. : The University of California. Division of Agricultural Sciences, 1978 - 40 p. : ilus. - Leaflet ; 2949 . - Leaflet ; 2949 .
32-57
68909
Entomología económica.
Entomología sistemática.