APA (7 ম সংস্করণ) উদ্ধৃতি

ebrary, Inc, & Classen, A. (2007). Old age in the Middle Ages and the Renaissance: Interdisciplinary approaches to a neglected topic. Walter de Gruyter.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

ebrary, Inc, এবং Albrecht Classen. Old Age in the Middle Ages and the Renaissance: Interdisciplinary Approaches to a Neglected Topic. Berlin ; New York: Walter de Gruyter, 2007.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

ebrary, Inc, এবং Albrecht Classen. Old Age in the Middle Ages and the Renaissance: Interdisciplinary Approaches to a Neglected Topic. Walter de Gruyter, 2007.