APA (7th ed.) Citation

Degener, O., & Degener, I. (1970). Do you give much thought to our native plants?: Shouldn't you? ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Degener, Otto, and Isa Degener. Do You Give Much Thought to Our Native Plants?: Shouldn't You? [Sonderdr.]. 1970.

MLA (9th ed.) Citation

Degener, Otto, and Isa Degener. Do You Give Much Thought to Our Native Plants?: Shouldn't You? [Sonderdr.]. 1970.

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