TY  - BOOK
AU  - Snodgrass, R.E.
TI  - Morphology and evolution of the insect head and its appendages
U1  - 595.7 21st ed.
PY  - 1928///
CY  - Washington
PB  -  Smithsonian Institution
KW  - Morphology
KW  - Insect
KW  - Nature of insect
N1  - Content.v.81-3
Smithsonian Miscellaneous Collections
ER  -