Advanced chemical methods for soil and clay minerals research : proceedings of the NATO Advanced Study Institute held at the University of Illinois, July 23-August 4, 1979 /

منشور في 1980

Experimental techniques in plant disease epidemiology /

منشور في 1988

Insect sampling in forest ecosystems /

منشور في 2005

Methods in plant virology /

حسب Hill, Stephen A.
منشور في 1984

Soil erosion research methods /

منشور في 1994

Soil solution chemistry : applications to environmental science and agriculture /

حسب Wolt, Jeffrey D.
منشور في 1994