Pratt, Guy A., authorSelvidge, R. W., committee memberFrasier, P. G., committee memberIrwin, K. G., committee memberNewsom, I. E., committee memberAvery, George T., committee member2007-01-032007-01-031937http://hdl.handle.net/10217/37378masters thesesengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.HobbiesText