Citazione Stile APA (7a Edizione)

Berg, C., Christensen, J. P., & Ressel, P. (1984). Harmonic analysis on semigroups: Theory of positive definite and related functions. Springer.

Citazione stile Chigago Style (17a edizione)

Berg, Christian, Jens Peter Christensen, e Paul Ressel. Harmonic Analysis on Semigroups: Theory of Positive Definite and Related Functions. Nueva York: Springer, 1984.

Citatione MLA (9a ed.)

Berg, Christian, et al. Harmonic Analysis on Semigroups: Theory of Positive Definite and Related Functions. Springer, 1984.