APA (7th ed.) Citation

Ravden, S. J., & Johnson, G. I. (1989). Evaluating usability of human-computer interfaces: A practical method (1. publ.). Horwood u.a.

Chicago Style (17th ed.) Citation

Ravden, Susannah J., and Graham I. Johnson. Evaluating Usability of Human-computer Interfaces: A Practical Method. 1. publ. Chichester: Horwood u.a, 1989.

MLA (9th ed.) Citation

Ravden, Susannah J., and Graham I. Johnson. Evaluating Usability of Human-computer Interfaces: A Practical Method. 1. publ. Horwood u.a, 1989.