APA (7th ed.) Citation

Lengen, H. v. (1972). Burgen und Schlösser in Ostfriesland.

Chicago Style (17th ed.) Citation

Lengen, Hajo van. Burgen Und Schlösser in Ostfriesland. 1972.

MLA (9th ed.) Citation

Lengen, Hajo van. Burgen Und Schlösser in Ostfriesland. 1972.

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