TY  - BOOK
AU  - cowie G. A.
ED  - United States.
TI  - Potash
T2  - Mineral commodity profiles
U1  - 631.83 
PY  - 1951///
CY  - London]
PB  - Edward
KW  - Potash industry and trade
KW  - United States
N1  - Includes bibliographical references and index
ER  -