APA Citation

Witting, R. (1907). Das Ostmarken-Problem. Berlin: Puttkammer & Mühlbrecht.

Chicago Style Citation

Witting, Richard. Das Ostmarken-Problem. Berlin: Puttkammer & Mühlbrecht, 1907.

MLA Citation

Witting, Richard. Das Ostmarken-Problem. Berlin: Puttkammer & Mühlbrecht, 1907.

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