Elias M. Stein: Singular Integrals and Differentiability Properties of Functions, Princeton Mathematical Series, Princeton University Press (1971) [ISBN:9780691080796]
Elias M. Stein, Guido Weiss: Introduction to Fourier analysis on Euclidean spaces, Princeton Univ. Press (1971) [jstor:j.ctt1bpm9w6, pdf]
Elias M. Stein, Rami Shakarchi: Functional Analysis: An Introduction to Further Topics in Analysis, Princeton University Press (2011) [ISBN 0691113874, pdf]