APA (7th ed.) Citation

NA. (1890). Two Species of Swallow New to North America. Zenodo.

Chicago Style (17th ed.) Citation

NA. Two Species of Swallow New to North America. Zenodo, 1890.

MLA (9th ed.) Citation

NA. Two Species of Swallow New to North America. Zenodo, 1890.

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