APA সাইটেশন

Titehmarsh, E. (1970). Eigenfunction expansions associated with second order differential equations. Clarendon.

শিকাগো স্টাইলে সাইটেশন

Titehmarsh, E.C. Eigenfunction Expansions Associated with Second Order Differential Equations. Oxford: Clarendon, 1970.

এমএলএ সাইটেশন

Titehmarsh, E.C. Eigenfunction Expansions Associated with Second Order Differential Equations. Clarendon, 1970.