APA (7th ed.) Citation

Gondin, Mammen, & Dodding. (1980). The art of speaking made simple (2nd ed.). Heinemann.

Chicago Style (17th ed.) Citation

Gondin, Mammen, and Dodding. The Art of Speaking Made Simple. 2nd ed. London: Heinemann, 1980.

MLA (8th ed.) Citation

Gondin, et al. The Art of Speaking Made Simple. 2nd ed. Heinemann, 1980.