• 15 Steenbock Library
• 3 Science Libraries Shelving Facility
• 2 Memorial Library
• 2 Verona Shelving Facility

• 24 Journals, Magazines, Newspapers

• 16 Agriculture
• 6 Tropical crops
• 5 Centro Internacional de Agricultura Tropical
• 5 Field crops
• 4 Forests and forestry
• 4 International Institute of Tropical Agriculture
• 3 International Crops Research Institute for the Semi-Arid Tropics
• 3 International Institute of Tropical Forestry (Río Piedras, San Juan, P.R.)
• 3 Rain forests
• 2 Arid regions agriculture
• 2 International cooperation
• 2 Sustainable agriculture
• 1 Agricultural productivity
• 1 Agroforestry
• 1 Ecology
• 1 Education
• 1 Environmental aspects
• 1 Experimental methods
• 1 Multiple use
• 1 Tropical corps

• 6 Centro Internacional de Agricultura Tropical
• 5 International Crops Research Institute for the Semi-Arid Tropics
• 5 International Institute of Tropical Agriculture
• 3 International Institute of Tropical Forestry (Río Piedras, San Juan, P.R.)
• 1 Great Britain. Colonial Office
• 1 Great Britain. Department of Technical Co-operation
• 1 Nihon Nettai Seitai Gakkai
• 1 Research Institute of the SPA

• 23 English
• 3 Spanish
• 1 Indonesian

• 2 Africa, Sub-Saharan
• 2 Latin America
• 1 Commonwealth countries
• 1 Developing countries
• 1 Indonesia
• 1 Nigeria

Limit year range