APA

Hornby N., Collins A., . (2003). About a Boy. Harlow: Pearson Education.

Chicago

Hornby N, Collins A, . 2003. About a Boy. Harlow: Pearson Education.

Harvard

Hornby N., Collins A., . (2003). About a Boy. Harlow: Pearson Education.

MLA

Hornby N, Collins A, . About a Boy. Harlow: Pearson Education. 2003.