APA (7th ed.) Citation

Green, A. K. (1893). Marked "personal". G. P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Green, Anna Katharina. Marked "Personal". New York London: G. P. Putnam's Sons, 1893.

MLA (9th ed.) Citation

Green, Anna Katharina. Marked "Personal". G. P. Putnam's Sons, 1893.

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