TY - BOOK AU - White,John A. AU - Case,E.Kenneth AU - Pratt,B.David TI - Principles of engineering economic analysis SN - 0471017736 PY - 1977/// CY - New York, N.Y. PB - John Wiley & Sons KW - Engineering economy N1 - Includes index; Content : Cost conceps--Time value of money operations ER -