APA Citation

O'Brien, P. (1990). A Guide to assertiveness. London: The Industrial Society.

Chicago Style Citation

O'Brien, Paddy. A Guide to Assertiveness. London: The Industrial Society, 1990.

MLA Citation

O'Brien, Paddy. A Guide to Assertiveness. London: The Industrial Society, 1990.

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