SpringerLink (Online service), Wichmann, M. W., McCullough, T. K., Roberts-Thomson, I. C., & Maddern, G. J. (2019). Gastroenterology For General Surgeons (1st ed. 2019.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-92768-8
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Matthias W. Wichmann, Timothy K. McCullough, Ian C. Roberts-Thomson, και Guy J. Maddern. Gastroenterology For General Surgeons. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-319-92768-8.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Gastroenterology For General Surgeons. 1st ed. 2019. Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-319-92768-8.