Master Humphrey's clock
MLA
Dickens, Charles, 1812-1870. Master Humphrey's clock. 1840-1841.. https://collections.library.yale.edu/catalog/32242673.
APA, 6th edition
Dickens, Charles, 1812-1870. (1840-1841.)[Master Humphrey's clock]. https://collections.library.yale.edu/catalog/32242673.