Attribution
Non-Commercial
No Derivative Works
Alston, Julian M. 2000. A meta-analysis of rates of return to agricultural R&D : ex pede herculem. Washington, D.C.:International Food Policy Research Institute;
Alston, Julian M. (2000) A meta-analysis of rates of return to agricultural R&D : ex pede herculem (รายงานผลงานวิจัย). International Food Policy Research Institute:Washington, D.C.
Alston, Julian M. A meta-analysis of rates of return to agricultural R&D : ex pede herculem. Washington, D.C.:International Food Policy Research Institute, 2000.
Alston, Julian M. (2000) A meta-analysis of rates of return to agricultural R&D : ex pede herculem (รายงานผลงานวิจัย). International Food Policy Research Institute:Washington, D.C.
