Watson, Lyall. Lifetide : a biology of the unconscious / Lyall Watson. - London : Hodder & Stoughton, c 1979. - 376 p. : ill. ; 22 cm. Includes index. Bibliography : p. 339-364. 328 328 ISBN: 0 340 23119 X Subjects--Topical Terms: Parapsychology & occultism. Dewey Class. No.: 133 / W29l