Columbia subject headings:
Global Exploration and Development Corporation.
Kerr-McGee Chemical Corporation.
Kerr-McGee Corporation.
Osceola National Forest (Fla.)
Phosphate leases--Florida.
Harvard subject headings:
Global Exploration and Development Corporation.
Kerr-McGee Chemical Corporation.
Kerr-McGee Corporation.
Osceola National Forest (Fla.)
Phosphate leases--Florida.
Princeton subject headings: