1.
 |  | Title: Tropical Agriculture in Transition: Opportunities for Mitigating Greenhouse Gas Emissions? by Reiner Wassmann, Paul L. G. Vlek ISBN: 1402014228 Publisher: Kluwer Academic Publishers Pub. Date: 01 January, 2004 List Price: $88.00 Amazon.com Price: $88.00 |
2.
 |  | Title: Managing Organic Matter in Tropical Soils: Scope and by C. Martius, H. Tiessen, P. L. G. Vlek, Paul L.G. Vlek ISBN: 1402004559 Publisher: Kluwer Academic Publishers Pub. Date: 01 December, 2001 List Price: $138.00 Amazon.com Price: $138.00 |
3.
 |  | Title: Management of Nitrogen and Phosphorous Fertilizers in Sub-Saharan Africa (Developments in Plant and Soil Sciences, No 24) by A. Uzo Mokwunye, Paul L.G. Vlek ISBN: 902473312X Publisher: Kluwer Academic Publishers Pub. Date: 01 August, 1986 List Price: $298.00 Amazon.com Price: $298.00 |
4.
 |  | Title: Micronutrients in Tropical Food Crop Production (Developments in Plant and Soil Sciences, Vol 14) by Paul L. G. Vlek, Paul L.G. Vlek ISBN: 9024730856 Publisher: Kluwer Academic Pub Pub. Date: 01 July, 1985 List Price: $234.00 Amazon.com Price: $234.00 |