Dennis, P. (1972). Decision by default: Peacetime conscription and British defence 1919-39. Duke Univ..
Dyfyniad Arddull ChicagoDennis, Peter. Decision by Default: Peacetime Conscription and British Defence 1919-39. Durham: Duke Univ., 1972.
Dyfyniad MLADennis, Peter. Decision by Default: Peacetime Conscription and British Defence 1919-39. Duke Univ., 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.