Παραπομπή σε μορφή APA (7η εκδ.)

Porter David 1945 & Stirling David S. G. (1990). Integral equations: A practical treatment, from spectral theory to applications. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Porter David 1945 και Stirling David S. G. Integral Equations: A Practical Treatment, from Spectral Theory to Applications. Cambridge University Press, 1990.

Παραπομπή σε μορφή MLA (8th εκδ.)

Porter David 1945 και Stirling David S. G. Integral Equations: A Practical Treatment, from Spectral Theory to Applications. Cambridge University Press, 1990.