Cita APA (7a ed.)
Spencer, S. Mysticism in World Religion. Penguin.
Cita estilo Chicago (17a ed.)
Spencer, Sidney. Mysticism in World Religion. Harmondsworth, Inglaterra: Penguin.
Cita MLA (9a ed.)
Spencer, Sidney. Mysticism in World Religion. Penguin.
警告：這些引文格式不一定是100％准確.