APA

Progoff I., . (1964). The image of an oracle : a report on research into mediumship of Eileen J. Garret. New York: Garrett Publications.

Chicago

Progoff Ira, . 1964. The image of an oracle : a report on research into mediumship of Eileen J. Garret. New York: Garrett Publications.

Harvard

Progoff I., . (1964). The image of an oracle : a report on research into mediumship of Eileen J. Garret. New York: Garrett Publications.

MLA

Progoff Ira, . The image of an oracle : a report on research into mediumship of Eileen J. Garret. New York: Garrett Publications. 1964.