APA (7th ed.) Citation

Toumey, J. W. (1896). A New Mamillaria. Zenodo.

Chicago Style (17th ed.) Citation

Toumey, James W. A New Mamillaria. Zenodo, 1896.

MLA (9th ed.) Citation

Toumey, James W. A New Mamillaria. Zenodo, 1896.

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