TY  - BOOK
AU  -  Manning,C.E.F.
ED  -  Tropical Products Institute.
TI  -  The market for steroid drug precursors with particular reference to diosgenin / 
U1  -  547.7   22
PY  - 1969///
CY  -  London : 
PB  -  Tropical Products Institute, 
KW  -  Diosgenin
KW  -  Steroid drugs
ER  -