APA
Jackson E. N., . (1968). Understanding prayer: an exploration of the nature, disciplines, and growth of the spiritual life. Cleveland: World Pub. Co.
Chicago
Jackson Edgar N, . 1968. Understanding prayer: an exploration of the nature, disciplines, and growth of the spiritual life. Cleveland: World Pub. Co.
Harvard
Jackson E. N., . (1968). Understanding prayer: an exploration of the nature, disciplines, and growth of the spiritual life. Cleveland: World Pub. Co.
MLA
Jackson Edgar N, . Understanding prayer: an exploration of the nature, disciplines, and growth of the spiritual life. Cleveland: World Pub. Co. 1968.
文字出版細節:Cleveland, World Pub. Co. [1968]說明: ix, 212 p. 22 cm主題: 杜威分類法: 
BK