एपीए उद्धरण

Froggatt, C. D., & Nielsen, H. B. (1991). Origin of symmetries. Singapore ; River Edge, NJ: World Scientific.

शिकागो स्टाइल उद्धरण

Froggatt, C. D., और H. B. Nielsen. Origin of Symmetries. Singapore ; River Edge, NJ: World Scientific, 1991.

एमएलए उद्धरण

Froggatt, C. D., और H. B. Nielsen. Origin of Symmetries. Singapore ; River Edge, NJ: World Scientific, 1991.