Παραπομπή σε μορφή APA (7η εκδ.)

Langer, M., Luger, A., & Woracek, H. (2006). Operator Theory and Indefinite Inner Product Spaces: Presented on the occasion of the retirement of Heinz Langer in the Colloquium on Operator Theory, Vienna, March 2004. BirkhΓuser Verlag.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Langer, Matthias, Annemarie Luger, και Harald Woracek. Operator Theory and Indefinite Inner Product Spaces: Presented on the Occasion of the Retirement of Heinz Langer in the Colloquium on Operator Theory, Vienna, March 2004. Basel: BirkhΓuser Verlag, 2006.

Παραπομπή σε μορφή MLA (8th εκδ.)

Langer, Matthias, et al. Operator Theory and Indefinite Inner Product Spaces: Presented on the Occasion of the Retirement of Heinz Langer in the Colloquium on Operator Theory, Vienna, March 2004. BirkhΓuser Verlag, 2006.