TY - BOOK AU - Marston, Anson & others TI - Engineering valuation and depreciation U1 - 657.73 PY - 1970/// CY - Iowa PB - Iowa State Uni. Press KW - Valuation KW - Depreciation KW - Engineering KW - Public welfare KW - Science KW - Social sciences KW - Technology KW - Civilization N1 - ENG ER -