National Public Works Conference. Sub-Committee on Cost Analysis of Engineering Services. (1974). Cost planning of mechanical and electrical engineering services for building projects (2nd ed.). N.P.W.C. Sub-Committee on Cost Analysis of Engineering Services.
Cita Chicago (17th ed.)National Public Works Conference. Sub-Committee on Cost Analysis of Engineering Services. Cost Planning of Mechanical and Electrical Engineering Services for Building Projects. 2nd ed. [Melbourne]: N.P.W.C. Sub-Committee on Cost Analysis of Engineering Services, 1974.
Cita MLA (8th ed.)National Public Works Conference. Sub-Committee on Cost Analysis of Engineering Services. Cost Planning of Mechanical and Electrical Engineering Services for Building Projects. 2nd ed. N.P.W.C. Sub-Committee on Cost Analysis of Engineering Services, 1974.