Wendland, W. L. (1979). Elliptic systems in the plane / (by) W.L. Wendland. Pitman.
Chicago Style (17th ed.) CitationWendland, W. L. Elliptic Systems in the Plane / (by) W.L. Wendland. London (etc.): Pitman, 1979.
MLA (9th ed.) CitationWendland, W. L. Elliptic Systems in the Plane / (by) W.L. Wendland. Pitman, 1979.
Warning: These citations may not always be 100% accurate.