TY  - BOOK
AU  - Sheldon,Richard P.
TI  - Search for and development of undiscovered phosphate resources in Southeast Asia
PY  - 1983///
KW  - Minerals
N1  - Includes bibliographical references
N2  - The countries of the humid tropical areas of the world lack the soill fertility necessary for high agricultural productivity, although water and sunlight are abundant
ER  -