ASHWORTH, A. (1996). Contractural Procedurs In The Construction Industry A. Ashworth. Addison Wesley Longman.
Lua i Stíl Chicago (17ú heag.)ASHWORTH, A. Contractural Procedurs In The Construction Industry A. Ashworth. Addison Wesley Longman, 1996.
Lua MLA (8ú heag.)ASHWORTH, A. Contractural Procedurs In The Construction Industry A. Ashworth. Addison Wesley Longman, 1996.
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