TY  - GEN
AU  - Richards,Glenn A.
AU  - Fan,Hsing Yun
TI  - Studies on arthropod cuticle: V. The variation in permeability of larval cuticles of the blowfly, phormia regina 
PY  - 1949///
CY  - Philadelphia : 
PB  - Wistar Institute Press, 
ER  -