एपीए उद्धरण

Kato,T. (1976). Perturbation theory for Linear Operators. Springer- Verlag.

शिकागो स्टाइल उद्धरण

Kato,T. Perturbation Theory for Linear Operators. New York: Springer- Verlag, 1976.

एमएलए उद्धरण

Kato,T. Perturbation Theory for Linear Operators. Springer- Verlag, 1976.