Romani, J. H. 1. . . . T. A. o. p. h. s., & Caldwell, L. K. 1. . . T. a. o. e. t. (1967). Politics, professionalism and the environment. Institute of Public Administration, Indiana University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRomani, John Henry 1925- The Administration of public health services, और Lynton Keith 1913- The application of engineering technology Caldwell. Politics, Professionalism and the Environment. Bloomington, Ind: Institute of Public Administration, Indiana University, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRomani, John Henry 1925- The Administration of public health services, और Lynton Keith 1913- The application of engineering technology Caldwell. Politics, Professionalism and the Environment. Institute of Public Administration, Indiana University, 1967.