Christensen, O. H. (1974). Mission mongolia, the untold story. Review and Herald.
Cita Chicago (17th ed.)Christensen, Otto H. Mission Mongolia, the Untold Story. Review and Herald, 1974.
Cita MLA (9th ed.)Christensen, Otto H. Mission Mongolia, the Untold Story. Review and Herald, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.