Citação norma APA

DeFrancesco, L., & Attardi, G. (1981). In situ photochemical crosslinking of HeLa cell mitochondrial DNA by a psoralen derivative reveals a protected region near the origin of replication.

Citação norma Chicago

DeFrancesco, L., and G. Attardi. In Situ Photochemical Crosslinking of HeLa Cell Mitochondrial DNA By a Psoralen Derivative Reveals a Protected Region Near the Origin of Replication. 1981.

Citação norma MLA

DeFrancesco, L., and G. Attardi. In Situ Photochemical Crosslinking of HeLa Cell Mitochondrial DNA By a Psoralen Derivative Reveals a Protected Region Near the Origin of Replication. 1981.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.