Παραπομπή APA

Jorgens, K., & Weidmann, J. (1973). Spectral properties of Hamiltonian operators. Springer-Verlag.

Παραπομπή Chicago Style

Jorgens, Konrad, και Joachim Weidmann. Spectral Properties of Hamiltonian Operators. Berlin, New York: Springer-Verlag, 1973.

Παραπομπή MLA

Jorgens, Konrad, και Joachim Weidmann. Spectral Properties of Hamiltonian Operators. Springer-Verlag, 1973.