APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Helgason, Sigurdur. Groups and Geometric Analysis: Integral Geometry, Invariant Differential Operators, and Spherical Functions. Orlando: Academic Press, 1984.

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.