APA

Gibbons A., Woodford M., . (1994). Grandad's Ears. London: Collins Educational.

Chicago

Gibbons Alan, Woodford Merida, . 1994. Grandad's Ears. London: Collins Educational.

Harvard

Gibbons A., Woodford M., . (1994). Grandad's Ears. London: Collins Educational.

MLA

Gibbons Alan, Woodford Merida, . Grandad's Ears. London: Collins Educational. 1994.