by John Boston, Daniel E. Manville
by John Carey, Stephen Benatar
by Richard Fortey
by Evan-Moor Educational Publishers
by Crystal Jeans
by Willard Bohn
by David Hampshire, Jim Watson
by Frederick Douglass, William L. Andrews, William S. McFeely
by Bill Eddy
by Thomas A. Mauet, Marlene A. Maerowitz
by Robert S. Summers, Robert A. Hillman
by Robert H. Klonoff, Edward K. M. Bilich, Suzette Malveaux
by Oscar G. Chase, Robert A. Barker
by R. Lawrence Dessem
by Barry Buzan, Laust Schouenborg
by Jonathan Kellerman
by Alan Korwin
by Mark Edward Herrmann