APA
Graef H. C., . (1965). Adult Christianity. Chicago: Franciscan Herald.
Chicago
Graef Hilda C, . 1965. Adult Christianity. Chicago: Franciscan Herald.
Harvard
Graef H. C., . (1965). Adult Christianity. Chicago: Franciscan Herald.
MLA
Graef Hilda C, . Adult Christianity. Chicago: Franciscan Herald. 1965.
