APA (7th ed.) Citation

Gerard, W. R. (1880). Gerard, William R. May 18, 1880 [2nd item]. Zenodo.

Chicago Style (17th ed.) Citation

Gerard, W. R. Gerard, William R. May 18, 1880 [2nd Item]. Zenodo, 1880.

MLA (9th ed.) Citation

Gerard, W. R. Gerard, William R. May 18, 1880 [2nd Item]. Zenodo, 1880.

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