Bryant, A. J. S. (1949). PRACTISING PHYSICIAN AND CANCER MORTALITY.
Dyfyniad Arddull ChicagoBryant, A. J. S. PRACTISING PHYSICIAN AND CANCER MORTALITY. 1949.
Dyfyniad MLABryant, A. J. S. PRACTISING PHYSICIAN AND CANCER MORTALITY. 1949.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.