APA (7th ed.) Citation

Zygmund, A. (1959). Trigonometric series / by A. Zygmund (2nd ed.). C.U.P..

Chicago Style (17th ed.) Citation

Zygmund, A. Trigonometric Series / by A. Zygmund. 2nd ed. C.U.P., 1959.

MLA (9th ed.) Citation

Zygmund, A. Trigonometric Series / by A. Zygmund. 2nd ed. C.U.P., 1959.

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