Willis Cristopher J. & Willis Andrew J. (1991). Specification writing for architects and surveyors (10th ed.). BSP.
Chicago Style (17th ed.) CitationWillis Cristopher J. and Willis Andrew J. Specification Writing for Architects and Surveyors. 10th ed. BSP, 1991.
MLA (8th ed.) CitationWillis Cristopher J. and Willis Andrew J. Specification Writing for Architects and Surveyors. 10th ed. BSP, 1991.
Warning: These citations may not always be 100% accurate.