APA (7th ed.) Citation

Buck, W. R. (1978). The Taxonomic Status of Selanginella eatonii. Zenodo.

Chicago Style (17th ed.) Citation

Buck, William R. The Taxonomic Status of Selanginella Eatonii. Zenodo, 1978.

MLA (9th ed.) Citation

Buck, William R. The Taxonomic Status of Selanginella Eatonii. Zenodo, 1978.

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