Thorpe, E., & Thorpe, S. (2010). The Pearson general knowledge manual 2010. Pearson.
Chicago-čujuhus (17. p.)Thorpe, Edgar, juo Showick Thorpe. The Pearson General Knowledge Manual 2010. Chandigarh: Pearson, 2010.
MLA-čujuhus (9. p.)Thorpe, Edgar, juo Showick Thorpe. The Pearson General Knowledge Manual 2010. Pearson, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.