Birch, P. (1999). Instant leadership.
Chicago-čujuhus (17. p.)Birch, Paul. Instant Leadership. New Delhi, 1999.
MLA-čujuhus (9. p.)Birch, Paul. Instant Leadership. 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.