APA (7th ed.) Citation

Knopf, J. (1991). The xeriscape flower gardener: A waterwise guide for the Rocky Mountain region. Johnson Books.

Chicago Style (17th ed.) Citation

Knopf, Jim. The Xeriscape Flower Gardener: A Waterwise Guide for the Rocky Mountain Region. Boulder: Johnson Books, 1991.

MLA (9th ed.) Citation

Knopf, Jim. The Xeriscape Flower Gardener: A Waterwise Guide for the Rocky Mountain Region. Johnson Books, 1991.