5 1 10 EWING, Galen W. Primary Author mixed material Tokyo McGraw-Hill Kogakusha 1975 SKOOG, Douglas A. Primary Author WEST, Donald M. Additional Author HOLLER, F. James Additional Author mixed material New York Sounders College 1996 ALEXEYEV,V Primary Author mixed material Moscow Foreign Language Publishing House [s.a] SKOOG, Douglas A. Additional Author WEST, Donald M. Additional Author HOLLER, F. James Additional Author CROYCH, Stanley R. Additional Author mixed material 9780534417970 Australia Thomson 2004 HOOGENDIJK, A.W. Additional Author SLANGEN, J.H.G. Primary Author mixed material Wageningen Landbouwhogeschool 1970