Titchmarsh, E. C. Elgenfunction Expansions Associated with Second Order Diffrential Equations. Clarendon.
Style de citation Chicago (17e éd.)Titchmarsh, Edward Charles. Elgenfunction Expansions Associated with Second Order Diffrential Equations. Oxford: Clarendon.
Style de citation MLA (8e éd.)Titchmarsh, Edward Charles. Elgenfunction Expansions Associated with Second Order Diffrential Equations. Clarendon.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.