APA (7th ed.) Citation

(2010). Mary's penny (1. publ.). Walker.

Chicago Style (17th ed.) Citation

Mary's Penny. 1. publ. London [u.a.]: Walker, 2010.

MLA (9th ed.) Citation

Mary's Penny. 1. publ. Walker, 2010.

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