APA
Alan Richardson D., . (1947). Christian apologetics. London: S.C.M Press ltd.
Chicago
Alan Richardson D.D, . 1947. Christian apologetics. London: S.C.M Press ltd.
Harvard
Alan Richardson D., . (1947). Christian apologetics. London: S.C.M Press ltd.
MLA
Alan Richardson D.D, . Christian apologetics. London: S.C.M Press ltd. 1947.