无弦. (2009). D级危楼: Before gabriel's trumpet sounds. 宁夏人民出版社.
Cita Chicago Style (17a ed.)无弦. D级危楼: Before Gabriel's Trumpet Sounds. 宁夏人民出版社, 2009.
Cita MLA (8a ed.)无弦. D级危楼: Before Gabriel's Trumpet Sounds. 宁夏人民出版社, 2009.
Precaución: Estas citas no son 100% exactas.