APA (7th ed.) Citation

Sigurður Helgason. (1984). Groups and geometric analysis: Integral geometry, invariant differential operators, and spherical functions. Acad. Press.

Chicago Style (17th ed.) Citation

Sigurður Helgason. Groups and Geometric Analysis: Integral Geometry, Invariant Differential Operators, and Spherical Functions. Orlando [u.a.]: Acad. Press, 1984.

MLA (9th ed.) Citation

Sigurður Helgason. Groups and Geometric Analysis: Integral Geometry, Invariant Differential Operators, and Spherical Functions. Acad. Press, 1984.