APA (7th ed.) Citation

Grimm, W. C. (1968). Recognizing flowering wild plants. Stackpole Books.

Chicago Style (17th ed.) Citation

Grimm, William Carey. Recognizing Flowering Wild Plants. Harrisburg, Pa: Stackpole Books, 1968.

MLA (9th ed.) Citation

Grimm, William Carey. Recognizing Flowering Wild Plants. Stackpole Books, 1968.