کتاب های Alfred R. Conklin
Introduction to soil chemistry: analysis and instrumentation
Alfred R. Conklin, 2005
Introduction to Soil Chemistry: Analysis and Instrumentation
Alfred R. Conklin, Jr., 2014
Introduction to Soil Chemistry: Analysis and Instrumentation, Volume 167
Alfred R. Conklin(auth.), J. D. Winefordner(eds.), 2005
World Food - Production and Use
Alfred R. Conklin, 2007
