United States. Agricultural Research Service, Marten, G. C., Shenk, J. S., & Barton, F. E. (1989). Near infrared reflectance spectroscopy (NIRS): Analysisof forage quality (Rev. Aug. 1989 (with supplements).). U.S. Dept. of Agriculture, Agricultural Research Service.
Chicago Style (17th ed.) CitationUnited States. Agricultural Research Service, G. C. Marten, J. S. Shenk, and F. E. Barton. Near Infrared Reflectance Spectroscopy (NIRS): Analysisof Forage Quality. Rev. Aug. 1989 (with supplements). [Washington, D.C.?]: U.S. Dept. of Agriculture, Agricultural Research Service, 1989.
MLA (9th ed.) CitationUnited States. Agricultural Research Service, et al. Near Infrared Reflectance Spectroscopy (NIRS): Analysisof Forage Quality. Rev. Aug. 1989 (with supplements). U.S. Dept. of Agriculture, Agricultural Research Service, 1989.