Cuthbert, M. J. (1943). How to know the spring flowers: Pictured-keys for determining the more common spring-flowering herbaceous plants, with suggestions and aids for their study. W. C. Brown.
Chicago Style (17th ed.) CitationCuthbert, Mabel Jaques. How to Know the Spring Flowers: Pictured-keys for Determining the More Common Spring-flowering Herbaceous Plants, with Suggestions and Aids for Their Study. Dubuque, Ia: W. C. Brown, 1943.
MLA (9th ed.) CitationCuthbert, Mabel Jaques. How to Know the Spring Flowers: Pictured-keys for Determining the More Common Spring-flowering Herbaceous Plants, with Suggestions and Aids for Their Study. W. C. Brown, 1943.
Warning: These citations may not always be 100% accurate.