APA (7th ed.) Citation

Hindley, J., & Chamberlain, M. (1993). A piece of string is a wonderful thing. Walker Books.

Chicago Style (17th ed.) Citation

Hindley, Judy, and Margaret Chamberlain. A Piece of String Is a Wonderful Thing. London: Walker Books, 1993.

MLA (9th ed.) Citation

Hindley, Judy, and Margaret Chamberlain. A Piece of String Is a Wonderful Thing. Walker Books, 1993.