APA (7th ed.) Citation

Allen, R. F. (1931). Heterothallism in Puccinia triticina ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Allen, Ruth F. Heterothallism in Puccinia Triticina. [Sonderdr.]. 1931.

MLA (9th ed.) Citation

Allen, Ruth F. Heterothallism in Puccinia Triticina. [Sonderdr.]. 1931.

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