APA (7th ed.) Citation

(1912). Chemical investigation of American spearmint oil. [publisher not identified].

Chicago Style (17th ed.) Citation

Chemical Investigation of American Spearmint Oil. [Washington]: [publisher not identified], 1912.

MLA (9th ed.) Citation

Chemical Investigation of American Spearmint Oil. [publisher not identified], 1912.

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