SPARKS DONALD B. (1982). DYNAMICS OF EFFECTIVE NEGOTIATION. GULF PUBLISHING CO.
Chicago-čujuhus (17. p.)SPARKS DONALD B. DYNAMICS OF EFFECTIVE NEGOTIATION. LONDON: GULF PUBLISHING CO, 1982.
MLA-čujuhus (9. p.)SPARKS DONALD B. DYNAMICS OF EFFECTIVE NEGOTIATION. GULF PUBLISHING CO, 1982.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.