British Guiana : 1. The Rupununi Savannas (continued). 2. The intermediate Savannas. 3. General remarks /
Stark, J.,Soil Surveyor.
Rutherford, G. K.
Spector, J.
Jones, T. A.
Trinidad and Tobago : [Soils Research and Survey Section, Regional Research Centre, Imperial College of Tropical Agriculture],
1959.
Maps in back pocket are catalogued separately.