Pitman, M. B., & Layfield, L. J. (2015). The Papanicolaou Society of Cytopathology System for Reporting Pancreaticobiliary Cytology: Definitions, Criteria and Explanatory Notes. Springer International Publishing : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)Pitman, Martha Bishop, και Lester James Layfield. The Papanicolaou Society of Cytopathology System for Reporting Pancreaticobiliary Cytology: Definitions, Criteria and Explanatory Notes. Cham: Springer International Publishing : Imprint: Springer, 2015.
Παραπομπή σε μορφή MLA (8th εκδ.)Pitman, Martha Bishop, και Lester James Layfield. The Papanicolaou Society of Cytopathology System for Reporting Pancreaticobiliary Cytology: Definitions, Criteria and Explanatory Notes. Springer International Publishing : Imprint: Springer, 2015.
