APA

Bonnell J. S., . (1954). The practice and power of prayer. Philadelphia: Westminster Press.

Chicago

Bonnell John Sutherland, . 1954. The practice and power of prayer. Philadelphia: Westminster Press.

Harvard

Bonnell J. S., . (1954). The practice and power of prayer. Philadelphia: Westminster Press.

MLA

Bonnell John Sutherland, . The practice and power of prayer. Philadelphia: Westminster Press. 1954.