Browning, Norma Lee. The psychic world of Peter Hurkos / [electronic resource] / Norma Lee Browning.. — New York : : New American Library,, 1971, c1970.. — viii, 237 p. [6] leaves of plates : : ill., ports. ; 18 cm. — (Signet mystic book). Subjects--Personal Names: Van der Hurk, Pieter, 1911- Subjects--Topical Terms: Clairvoyance. LC Class. No.: BF1027.V3 / B7 1971 Dewey Class. No.: 133.8/0924