APA (7th ed.) Citation

Wagner, W. H. (1966). Illustrations of Transient Fern Forms. Zenodo.

Chicago Style (17th ed.) Citation

Wagner, Warren H.‏,‏. Illustrations of Transient Fern Forms. Zenodo, 1966.

MLA (9th ed.) Citation

Wagner, Warren H.‏,‏. Illustrations of Transient Fern Forms. Zenodo, 1966.

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