TY  - BOOK
AU  - Oskar A. Johnnsen
AU  -  Ferdinand H. Butt, 
TI  - Embryology of insects and myriapods
U1  - 595.7033 
PY  - 1941///
CY  - London
PB  - Mcgraw Hill Book Co Inc
N1  - Oskar A. Johnnsen & Ferdinand H. Butt: Embryology of insects and myriapods.  London.  Mcgraw Hill Book Co Inc, 1941.--(595.7033JOH)
ER  -