APA (7th ed.) Citation

Lewis C S. (1993). The pilgrim's regress. Collins.

Chicago Style (17th ed.) Citation

Lewis C S. The Pilgrim's Regress. Glasgow: Collins, 1993.

MLA (9th ed.) Citation

Lewis C S. The Pilgrim's Regress. Collins, 1993.

Warning: These citations may not always be 100% accurate.