APA
Johnstone R., . (1996). Printed Teaching Materials. London: Cavendish Pub.
Chicago
Johnstone Richard, . 1996. Printed Teaching Materials. London: Cavendish Pub.
Harvard
Johnstone R., . (1996). Printed Teaching Materials. London: Cavendish Pub.
MLA
Johnstone Richard, . Printed Teaching Materials. London: Cavendish Pub. 1996.