APA (7th ed.) Citation

KLÖPPEL, G., PERREN, A., & HEITZ, P. U. (2004). The Gastroenteropancreatic Neuroendocrine Cell System and Its Tumors: The WHO Classification. Annals of the New York Academy of Sciences, 1014(1), 13-27. https://doi.org/10.1196/annals.1294.002

Chicago Style (17th ed.) Citation

KLÖPPEL, GÜNTER, AUREL PERREN, and PHILIPP U. HEITZ. "The Gastroenteropancreatic Neuroendocrine Cell System and Its Tumors: The WHO Classification." Annals of the New York Academy of Sciences 1014, no. 1 (2004): 13-27. https://doi.org/10.1196/annals.1294.002.

MLA (9th ed.) Citation

KLÖPPEL, GÜNTER, et al. "The Gastroenteropancreatic Neuroendocrine Cell System and Its Tumors: The WHO Classification." Annals of the New York Academy of Sciences, vol. 1014, no. 1, 2004, pp. 13-27, https://doi.org/10.1196/annals.1294.002.