Pratchett, T. (1988). Wyrd systems. Corgi Books.
Citación estilo ChicagoPratchett, Terry. Wyrd Systems. London: Corgi Books, 1988.
Cita MLAPratchett, Terry. Wyrd Systems. Corgi Books, 1988.
Warning: These citations may not always be 100% accurate.
Cita APA