APA-čujuhus (7. p.)
ebrary, Inc, & Watson, R. P. (2012). The Obama presidency: A preliminary assessment. State University of New York Press.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Robert P. Watson. The Obama Presidency: A Preliminary Assessment. Albany: State University of New York Press, 2012.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Robert P. Watson. The Obama Presidency: A Preliminary Assessment. State University of New York Press, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.