APA (7th ed.) Citation

Hewson, M. L. (1994). Horticulture as therapy: A practical guide to using horticulture as a therapeutic tool. M.L. Hewson.

Chicago Style (17th ed.) Citation

Hewson, Mitchell L. Horticulture as Therapy: A Practical Guide to Using Horticulture as a Therapeutic Tool. Guelph, Ont.: M.L. Hewson, 1994.

MLA (9th ed.) Citation

Hewson, Mitchell L. Horticulture as Therapy: A Practical Guide to Using Horticulture as a Therapeutic Tool. M.L. Hewson, 1994.