Campbell Clarke (Clarke, Campbell)

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  The Business of Tanks, 1933 to 1945
  by George MacLeod Ross, Campbell Clarke
  Hardcover, A. H. Stockwell, ISBN 0722308701 (0-7223-0870-1)
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  Self-Directed Learning Manual
  by David A. Whetten, Cameron, Campbell Clarke
  Softcover, Prentice Hall PTR, ISBN 0321030516 (0-321-03051-6)
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  Wet Tropics Conservation Strategy (2004): The Conservation, Rehabilitation, and Transmission to Future Generations of the Wet Tropics World Heritage Area
  by Queensland, Campbell Clarke, Alicia Hill
  Hardcover, Wet Tropics Management Authority, ISBN 0975220209 (0-9752202-0-9)