APA (7th ed.) Citation

Clark, D. H. (1977). The historical supernovae. Pergamon.

Chicago Style (17th ed.) Citation

Clark, David H. The Historical Supernovae. London: Pergamon, 1977.

MLA (9th ed.) Citation

Clark, David H. The Historical Supernovae. Pergamon, 1977.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.