TY  - BOOK
AU  - Cressman,A.W.
AU  - Bliss,C.I.
AU  - Kessels,L.T.
AU  - Dumetre
TI  - Biology of the Camphor Scales and Method for Predicting the Time of Appaerance of Stages in the Field
PY  - 1935///
CY  - Washington, D. C, USA
ER  -