Hards, Robert George.2014-11-272014-11-271983http://hdl.handle.net/1993/30048xxii [i.e. xxiv], 387 [i.e. 390] leaves :engMammalian ribonucleotide reductase : the regulation of enzyme activity in wild-type and N-carbamoyloxyurea-resistant mutants of Chinese hamster ovary cellsdoctoral thesis