APA (7th ed.) Citation

Fretwell, B. (1989). Clematis (1st American ed.). Capability's Books.

Chicago Style (17th ed.) Citation

Fretwell, Barry. Clematis. 1st American ed. Deer Park, WI: Capability's Books, 1989.

MLA (9th ed.) Citation

Fretwell, Barry. Clematis. 1st American ed. Capability's Books, 1989.