APA (7th ed.) Citation

Gray, A. (1839). Gray, Asa Mar. 5, 1839 [to Torrey]. Zenodo.

Chicago Style (17th ed.) Citation

Gray, Asa. Gray, Asa Mar. 5, 1839 [to Torrey]. Zenodo, 1839.

MLA (9th ed.) Citation

Gray, Asa. Gray, Asa Mar. 5, 1839 [to Torrey]. Zenodo, 1839.

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