Cita APA (7a ed.)

Bonsall, F. F., & Duncan, J. (1971). Numerical ranges of operators on normed spaces and of elements of normed algebras. Cambridge University Press.

Cita Chicago Style (17a ed.)

Bonsall, F. F., y J. Duncan. Numerical Ranges of Operators on Normed Spaces and of Elements of Normed Algebras. London: Cambridge University Press, 1971.

Cita MLA (8a ed.)

Bonsall, F. F., y J. Duncan. Numerical Ranges of Operators on Normed Spaces and of Elements of Normed Algebras. Cambridge University Press, 1971.