By Kotter, John P, Cohen, Dan S
By Wolf, Douglas J.
By Hugh Cameron, Roger Voight
By Amitai Etzioni
By Perry
By Stanley Feldman, Vincent Marks
By Young, Toby
By Flavell, L., Flavell, R.H.
By Nickelodeon
By Robert Hall
By Cruickshank, Margrit, Saunders, Dave
By The European Garden Flora Editorial Committee (University of Cambridge Botanic Garden)
By Crebbin, June, Lambert, Stephen
By Mary Hoffman, Cornelius Van Wright, Ying-Hwa Hu
By Roy Alexander (Chester College, UK), Andrew C. Millington (University of Leicester
By Harris, Caroline
By David V. Alford (Ministry of Agriculture, Fisheries & Food, cambridge, England)
By Hunt, Roderick, Ruttle, Kate, Young, Annemarie, Brychta, Alex
By Bryman, Alan, Cramer, Duncan
By Joanna Richardson, Carol Joughin
By David Ray Anderson, Dennis J. Sweeney, Thomas Arthur Williams, Jim Freeman, Eddie Shoesmith
By Kazdin, Alan E.
By Marc H. Bornstein (Eunice Kennedy Shriver National Institute of Child Health and Human Development, USA)
By Marc H. Bornstein (National Institute of Child Health and Human Development, Bethesda, MD, USA), Marc H. Bornstein
By Marc H. Bornstein (National Institute of Child Health and Human Development, Bethesda, MD, USA)
By Michael Sheppard
By Charles E. Schaefer, James M. Briesmeister