Gaya APA

Watts, A, W. (1970). The Joyous cosmology: adventures in the chemistery of consciousness. Foreword by Timothy Leary & Richard Alpert. . New York: New York Vintage Books.

Gaya MLA

Watts, Alan, W.. "The Joyous cosmology: adventures in the chemistery of consciousness. Foreword by Timothy Leary & Richard Alpert. ". New York: New York Vintage Books, 1970. Buku.