एपीए उद्धरण

Williams, W. E. (1973). Fourier series and boundary-value problems. Allen & Unwin.

शिकागो स्टाइल उद्धरण

Williams, William Elwyn. Fourier Series and Boundary-value Problems. London: Allen & Unwin, 1973.

एमएलए उद्धरण

Williams, William Elwyn. Fourier Series and Boundary-value Problems. Allen & Unwin, 1973.