Smith, T., & Sternberg, W. (1952). The theory of potential and spherical harmonics. The University of Toronto.
Citazione stile Chigago Style (17a edizione)Smith, T.L, e W.J Sternberg. The Theory of Potential and Spherical Harmonics. Toronto, Canada: The University of Toronto, 1952.
Citatione MLA (9a ed.)Smith, T.L, e W.J Sternberg. The Theory of Potential and Spherical Harmonics. The University of Toronto, 1952.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.