APA (7th ed.) Citation

Pringle, C. G. (1887). Pringle, C.G. Dec 1, 1887 [postcard]. Zenodo.

Chicago Style (17th ed.) Citation

Pringle, Cyrus G. Pringle, C.G. Dec 1, 1887 [postcard]. Zenodo, 1887.

MLA (9th ed.) Citation

Pringle, Cyrus G. Pringle, C.G. Dec 1, 1887 [postcard]. Zenodo, 1887.

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