Andy Davies 13 Bob Lewis 13 Bob Wilson 13 Fred Fawbert 13 General Knowledge 13 Gerard O`Neil 13 John Stock 13 Melissa Towner 13 Peter Darnton 13 Peter Osborn 13 Roy Thorpe 13 THORPES DICTIONARY OF APPLIED CHEMISTRY 11 Competitive exams study materials--Study and teaching 7 General knowledge 7 Questions and answers 7 Examination 6 Study guide 6 Food 5 Plant embryology 5 Competitive examinations 4 General Studies 4 General serial publications 4 General studies 4 Geometry, Differential 4 History 4 Plant tissue culture 4 Plants 4 Seeds 4 Topology 4 Animal behaviour patterns 3