APA (7th ed.) Citation

Knutsen, K. (1975). Wild plants you can eat: A guide to identification and preparation. Dolphin Books.

Chicago Style (17th ed.) Citation

Knutsen, Karl. Wild Plants You Can Eat: A Guide to Identification and Preparation. Garden City, N.Y.: Dolphin Books, 1975.

MLA (9th ed.) Citation

Knutsen, Karl. Wild Plants You Can Eat: A Guide to Identification and Preparation. Dolphin Books, 1975.