by Barry Dainton
by Tom Sparrow
by American Geriatrics Society (AGS), Health in Aging Foundation, American Geriatric Society Staff
by McCarthyMichael, Felicity O'Dell
by Tremper Longman
by L. W. de Laurence
by Carl Sagan
by Bodhidharma, Red Pine
by Michael Grunwald, Marjory Stoneman Douglas, Michael Grunwald
by Walter A. Brogan
by T. D. Stanley, Hristos Doucouliagos
by Andrea Lavazza, Howard Robinson
by Eduardo Gill-Pedro
by El�mire Zolla
by Sean Enda Power
by Michael Breen
by Mark Okrent
by Robert J. Knecht
by Ashley Marshall, John Barrell, Ann Bermingham, Robert Folkenflik, Robert D. Hume
by Jim Slagle
by Raphael Neelamkavil, Saju Chackalackal
by Susanne M. Klausen
by James A. Harris
by Jonathan Head
by Daniel Ingram, Jameson Walker
by Bernardo Kastrup
by Nigel Beynon, Andrew Sach
by Stephen M. Trzaskoma, R. Scott Smith, Stephen Brunet, Thomas G. Palaima
by George R. Montgomery, Gottfried Wilhelm Leibniz, Albert R. Chandler
by David Horton