APA (7th ed.) Citation

Happold Frederick Crossfield. (1970). Mysticism: A Study and an Anthology (First published 1963, revised edition 1970.). Penguin Books.

Chicago Style (17th ed.) Citation

Happold Frederick Crossfield. Mysticism: A Study and an Anthology. First published 1963, revised edition 1970. Harmondsworth: Penguin Books, 1970.

MLA (9th ed.) Citation

Happold Frederick Crossfield. Mysticism: A Study and an Anthology. First published 1963, revised edition 1970. Penguin Books, 1970.