APA (7th ed.) Citation

Heron, J. (1990). Helping the client: A creative practical guide. Sage.

Chicago Style (17th ed.) Citation

Heron, John. Helping the Client: A Creative Practical Guide. London [etc.]: Sage, 1990.

MLA (9th ed.) Citation

Heron, John. Helping the Client: A Creative Practical Guide. Sage, 1990.

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