APA (7 वां संस्करण) प्रशस्ति पत्र

Smith, H. W. (1966). Approximate analysis of randomly excited nonlinear controls. M.I.T. Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Smith, Harold William. Approximate Analysis of Randomly Excited Nonlinear Controls. Cambridge, Mass.: M.I.T. Press, 1966.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Smith, Harold William. Approximate Analysis of Randomly Excited Nonlinear Controls. M.I.T. Press, 1966.