Sario, L., Nakai, M., Wang, C., & Chung, L. O. (1977). Classification theory of Riemann manifolds: Harmonic, quasiharmonic and biharmonic functions. Springer-Verlag.
Chicago Style (17. basım) AtıfSario, Leo, Mitsuru Nakai, Cecilia Wang, ve Lung Ock Chung. Classification Theory of Riemann Manifolds: Harmonic, Quasiharmonic and Biharmonic Functions. Berlín: Springer-Verlag, 1977.
MLA (9th ed.) AtıfSario, Leo, et al. Classification Theory of Riemann Manifolds: Harmonic, Quasiharmonic and Biharmonic Functions. Springer-Verlag, 1977.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..