APA

Pratchett T., . (1997). Hogfather. London: Corgi Books.

Chicago

Pratchett T, . 1997. Hogfather. London: Corgi Books.

Harvard

Pratchett T., . (1997). Hogfather. London: Corgi Books.

MLA

Pratchett T, . Hogfather. London: Corgi Books. 1997.