Strock, J. M. (2001). Theodore Roosevelt on Leadership. Forum Prima.
Chicago-čujuhus (17. p.)Strock, James M. Theodore Roosevelt on Leadership. Forum Prima, 2001.
MLA-čujuhus (9. p.)Strock, James M. Theodore Roosevelt on Leadership. Forum Prima, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.