APA (7th ed.) Citation

Old Humphrey. (1868). Old Humphrey's sketch book. Religious Tract Society.

Chicago Style (17th ed.) Citation

Old Humphrey. Old Humphrey's Sketch Book. London: Religious Tract Society, 1868.

MLA (9th ed.) Citation

Old Humphrey. Old Humphrey's Sketch Book. Religious Tract Society, 1868.

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