APA (7th ed.) Citation

Boetticher, E. (1890). ... Sendschreiben über Troja. [publisher not identified].

Chicago Style (17th ed.) Citation

Boetticher, Ernst. ... Sendschreiben über Troja. [Berlin]: [publisher not identified], 1890.

MLA (8th ed.) Citation

Boetticher, Ernst. ... Sendschreiben über Troja. [publisher not identified], 1890.

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