APA (7th ed.) Citation

Gray, A. (1874). Gray, Asa Jan. 29, 1874 [Gray to E. F. Trippe] [envelope]. Zenodo.

Chicago Style (17th ed.) Citation

Gray, Asa. Gray, Asa Jan. 29, 1874 [Gray to E. F. Trippe] [envelope]. Zenodo, 1874.

MLA (9th ed.) Citation

Gray, Asa. Gray, Asa Jan. 29, 1874 [Gray to E. F. Trippe] [envelope]. Zenodo, 1874.

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