APA (7th ed.) Citation

Hill, T. G., & Freeman, W. G. (1910). On the seedling structure of gymnosperms ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Hill, Thomas G., and W. G. Freeman. On the Seedling Structure of Gymnosperms. [Sonderdr.]. 1910.

MLA (9th ed.) Citation

Hill, Thomas G., and W. G. Freeman. On the Seedling Structure of Gymnosperms. [Sonderdr.]. 1910.