Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Otto, F., & Lutz, M. P. (2014). Early Gastrointestinal Cancers II: Rectal Cancer. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Florian Otto, και Manfred P. Lutz. Early Gastrointestinal Cancers II: Rectal Cancer. Cham: Springer International Publishing : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Early Gastrointestinal Cancers II: Rectal Cancer. Springer International Publishing : Imprint: Springer, 2014.