Reid, W. T. (1980). Sturmian theory for ordinary differential equations. Springer.
Chicago Style (17th ed.) CitationReid, William T. Sturmian Theory for Ordinary Differential Equations. New York [u.a.]: Springer, 1980.
MLA (9th ed.) CitationReid, William T. Sturmian Theory for Ordinary Differential Equations. Springer, 1980.
Warning: These citations may not always be 100% accurate.