By Burge
By Leppard, Barbara
By Nieschlag, Eberhard, Behre, Herrmann
By Margery H. Davis
By Samuel Weinberg, Neil S. Prose, Leonard Kristal
By David J. Goldberg
By Cheryl M. Burgess
By Nicky Cullum
By J Bowling
By David Coggon, David Barker, Geoffrey Rose
By Arthur Rook, etc., R.H. Champion, J.L. Burton, F.J.G. Ebling (Emeritus Professor of Zoology, University of Sheffield)
By Clifford M. Lawrence MD FRCP, Clifford M. Lawrence
By M. D. Richardson, Elizabeth Johnson
By George H. Muller, Robert W. Kirk, Danny W. Scott, etc.
By C Ridley, J Oriel, A.J. Robinson