TY  - BOOK
AU  - O W Richards
TI  - Imms' General textbook of entomology : structure, physiology and development Vol- I 
SN  - 041215210 X
U1  - 595.7 RIC/IM 
PY  - 1977///
CY  - London
PB  - Chpman And Hall
KW  - anatomy and physiology
KW  - development and metamorphosis
ER  -