APA (7th ed.) Citation

Krieger, L. (1970). Note on Hajo Holborn's unfinished business. Central European history.

Chicago Style (17th ed.) Citation

Krieger, Leonard. "Note on Hajo Holborn's Unfinished Business." Central European History 1970.

MLA (8th ed.) Citation

Krieger, Leonard. "Note on Hajo Holborn's Unfinished Business." Central European History, 1970.

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