APA (7th ed.) Citation

Underwood, L. M. (1882). Underwood, Lucien M. Jun 26, 1882 [postcard]. Zenodo.

Chicago Style (17th ed.) Citation

Underwood, Lucien Marcus. Underwood, Lucien M. Jun 26, 1882 [postcard]. Zenodo, 1882.

MLA (9th ed.) Citation

Underwood, Lucien Marcus. Underwood, Lucien M. Jun 26, 1882 [postcard]. Zenodo, 1882.

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