1. Confirmation of airborne biogeophysical mineral exploration technique using laboratory methods;Chang;Econ. Geol.,1983
2. Plant response to mineral element toxicity and deficiency;Clark,1982
3. Remote sensing of crop type and maturity using high resolution features in the near infrared;Collins;Photogramm. Eng. Remote Sens.,1978
4. Statistics;Freedman,1978
5. Physiology of Crop Plants;Gardner,1985