Cooke, B. (1984). Contract planning and contractual procedures (2nd.ed.). Macmillan.
Chicago-čujuhus (17. p.)Cooke, B. Contract Planning and Contractual Procedures. 2nd.ed. Basingstoke, Hampshire [England]: Macmillan, 1984.
MLA-čujuhus (9. p.)Cooke, B. Contract Planning and Contractual Procedures. 2nd.ed. Macmillan, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.