APA (7th ed.) Citation

Backus, O. P. (1962). The problem of feudalism in Lithuania, 1506-1548.

Chicago Style (17th ed.) Citation

Backus, Oswald Prentiss. The Problem of Feudalism in Lithuania, 1506-1548. 1962.

MLA (9th ed.) Citation

Backus, Oswald Prentiss. The Problem of Feudalism in Lithuania, 1506-1548. 1962.

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