APA (7th ed.) Citation

Barker, H. (1987). The possibilities (1. publ.). Calder [u.a.].

Chicago Style (17th ed.) Citation

Barker, Howard. The Possibilities. 1. publ. London [u.a.]: Calder [u.a.], 1987.

MLA (9th ed.) Citation

Barker, Howard. The Possibilities. 1. publ. Calder [u.a.], 1987.