APA (7th ed.) Citation

Manthei. (1992). Positively me: A guide to assertive behaviour (Rev. ed.). Heinemann Asia.

Chicago Style (17th ed.) Citation

Manthei. Positively Me: A Guide to Assertive Behaviour. Rev. ed. Singapore: Heinemann Asia, 1992.

MLA (8th ed.) Citation

Manthei. Positively Me: A Guide to Assertive Behaviour. Rev. ed. Heinemann Asia, 1992.