APA (7th ed.) Citation

McKenny, M., & Johnston, E. F. (1939). A book of wild flowers. The Macmillan Co..

Chicago Style (17th ed.) Citation

McKenny, Margaret, and Edith Farrington Johnston. A Book of Wild Flowers. New York: The Macmillan Co., 1939.

MLA (8th ed.) Citation

McKenny, Margaret, and Edith Farrington Johnston. A Book of Wild Flowers. The Macmillan Co., 1939.

Warning: These citations may not always be 100% accurate.