APA (7e ed.) Bronvermelding

Weil, A. (1972). The natural mind: A new way of looking at drugs and higher consciousness. Houghton.

Chicago (17e ed.) Bronvermelding

Weil, Andrew. The Natural Mind: A New Way of Looking at Drugs and Higher Consciousness. Boston: Houghton, 1972.

MLA (9e ed.) Bronvermelding

Weil, Andrew. The Natural Mind: A New Way of Looking at Drugs and Higher Consciousness. Houghton, 1972.