APA (7th ed.) Citation

Ravden, S. J., & Johnson, G. I. (1989). Evaluating usability of human-computer interfaces : a practical method / Susannah J. Ravden, Graham I. Johnson: A practical method. Ellis Horwood.

Chicago Style (17th ed.) Citation

Ravden, Susannah J., and Graham I. Johnson. Evaluating Usability of Human-computer Interfaces : A Practical Method / Susannah J. Ravden, Graham I. Johnson: A Practical Method. Chichester: Ellis Horwood, 1989.

MLA (9th ed.) Citation

Ravden, Susannah J., and Graham I. Johnson. Evaluating Usability of Human-computer Interfaces : A Practical Method / Susannah J. Ravden, Graham I. Johnson: A Practical Method. Ellis Horwood, 1989.

Warning: These citations may not always be 100% accurate.