APA (7th ed.) Citation

Hartley, J. (1994). Designing instructional text (3. ed.). Kogan Page [u.a.].

Chicago Style (17th ed.) Citation

Hartley, James. Designing Instructional Text. 3. ed. London: Kogan Page [u.a.], 1994.

MLA (9th ed.) Citation

Hartley, James. Designing Instructional Text. 3. ed. Kogan Page [u.a.], 1994.