APA

Van Zeller H., . (1958). Approach to prayer. N.Y: Sheed & Ward.

Chicago

Van Zeller Hubert, . 1958. Approach to prayer. N.Y: Sheed & Ward.

Harvard

Van Zeller H., . (1958). Approach to prayer. N.Y: Sheed & Ward.

MLA

Van Zeller Hubert, . Approach to prayer. N.Y: Sheed & Ward. 1958.