एपीए उद्धरण

Roller-Wirnsberger, R., Singler, K., & Polidori, M. C. (2020). Learning Geriatric Medicine. Springer International Publishing.

शिकागो स्टाइल उद्धरण

Roller-Wirnsberger, Regina, Katrin Singler, और Maria Cristina Polidori. Learning Geriatric Medicine. Springer International Publishing, 2020.

एमएलए उद्धरण

Roller-Wirnsberger, Regina, Katrin Singler, और Maria Cristina Polidori. Learning Geriatric Medicine. Springer International Publishing, 2020.