APA (7th ed.) Citation

Sprague, T. A. (1949). Forms of Valeriana officinalis L ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Sprague, Thomas Archibald. Forms of Valeriana Officinalis L. [Sonderdr.]. 1949.

MLA (9th ed.) Citation

Sprague, Thomas Archibald. Forms of Valeriana Officinalis L. [Sonderdr.]. 1949.

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