Burroughs, W. S. (1967). The soft machine: William S. Burroughs (1st edition.). Grove.
Chicago-Zitierstil (17. Ausg.)Burroughs, William S. The Soft Machine: William S. Burroughs. 1st edition. New York: Grove, 1967.
MLA-Zitierstil (8. Ausg.)Burroughs, William S. The Soft Machine: William S. Burroughs. 1st edition. Grove, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.