एपीए उद्धरण

Rupakhety, R., & Ólafsson, S. (2020). Earthquake Engineering and Structural Dynamics in Memory of Ragnar Sigbjörnsson. 1st ed. 2018. Springer International Publishing.

शिकागो स्टाइल उद्धरण

Rupakhety, Rajesh, और Símon Ólafsson. Earthquake Engineering and Structural Dynamics in Memory of Ragnar Sigbjörnsson. 1st Ed. 2018. Springer International Publishing, 2020.

एमएलए उद्धरण

Rupakhety, Rajesh, और Símon Ólafsson. Earthquake Engineering and Structural Dynamics in Memory of Ragnar Sigbjörnsson. 1st Ed. 2018. Springer International Publishing, 2020.