- Cornell University: Industrial Hemp.
- Penn State Extension: Industrial Hemp Production.
- University of Vermont Industrial Hemp Research Program.
- Purdue University Hemp Project.
- Hemp Biology.
- Crop Physiology of Fibre Hemp. [pdf]
- Effects of Nitrogen Fertilizer Rate, Timing and Herbicide Use on Industrial Hemp.
- S1084: Industrial Hemp Production, Processing, and Marketing in the U.S.
- Hemp Husbandry.
- Manitoba Agriculture Industrial Hemp Production and management [ Weights and other values ]
- Industrial Hemp in the U.S. Status and Market Potential [PDF].
- Hemp Genetics International.