TY  - BOOK
AU  - Notholt A J G Ed.
AU  -  Davidson D F Ed.
AU  -  Sheldon R P Ed.
TI  - Phosphate deposits of the world
T2  - International geological correlation programme project 156 phosphorites
U1  - H715.1, M6.2     RR 
PY  - 1986///
CY  - Cambridge
PB  - Cambridge university press       
KW  - Phosphate
ER  -