APA (7th ed.) Citation

Pietsch, A. (1987). Eigenvalues and S-numbers. University Press.

Chicago Style (17th ed.) Citation

Pietsch, A. Eigenvalues and S-numbers. Cambridge [etc.]: University Press, 1987.

MLA (9th ed.) Citation

Pietsch, A. Eigenvalues and S-numbers. University Press, 1987.