Авторы
William T. O'Donohue Margaret O'Brien Eileen O'Grady Jeffery Odum Celia Oakley Jason Osipa Thomas H. Ollendick Hilary Orpet Harry Ostrer Milton Orchin Karen Ousey George A. Olah Brian Olshansky Jean-Paul Ortonne P. Oyston Haydee Ojeda-Fournier Nobuo Ohta Kieron O'Connor M. Orrit Susan E. Orosz Hiroyuki Osada Hideo Ohkawa Gilbert S. Omenn Fergal O'Gara