APA (7th ed.) Citation

Hobson, E. W. (1955). The theory of spherical and ellipsoidal harmonics (1. publ. 1931 by Cambridge Univ. Press.). Chelsea Publ.

Chicago Style (17th ed.) Citation

Hobson, E. W. The Theory of Spherical and Ellipsoidal Harmonics. 1. publ. 1931 by Cambridge Univ. Press. New York: Chelsea Publ, 1955.

MLA (9th ed.) Citation

Hobson, E. W. The Theory of Spherical and Ellipsoidal Harmonics. 1. publ. 1931 by Cambridge Univ. Press. Chelsea Publ, 1955.