Zinberg, N. E. (1977). Alternate states of consciousness. The Free Press.
Cita Chicago Style (17a ed.)Zinberg, Norman E. Alternate States of Consciousness. The Free Press, 1977.
Cita MLA (9a ed.)Zinberg, Norman E. Alternate States of Consciousness. The Free Press, 1977.
Precaución: Estas citas no son 100% exactas.