APA-čujuhus (7. p.)
Biggs, S., & Helms, L. B. (2007). The practice of American public policymaking. M.E. Sharpe.
Chicago-čujuhus (17. p.)
Biggs, Selden, juo Lelia B. Helms. The Practice of American Public Policymaking. Armonk, N.Y.: M.E. Sharpe, 2007.
MLA-čujuhus (9. p.)
Biggs, Selden, juo Lelia B. Helms. The Practice of American Public Policymaking. M.E. Sharpe, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.