Sorenson, S. (1998). How to write research papers (2nd.). Thomson Learning.
Chicago-čujuhus (17. p.)Sorenson, Sharon. How to Write Research Papers. 2nd. Cincinnati: Thomson Learning, 1998.
MLA-čujuhus (9. p.)Sorenson, Sharon. How to Write Research Papers. 2nd. Thomson Learning, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.