एपीए उद्धरण

American Institute of Physics. Gratuate Programs in Physics, Astronomy and Related Fields. American Institute of physics.

शिकागो स्टाइल उद्धरण

American Institute of Physics. Gratuate Programs in Physics, Astronomy and Related Fields. New York: American Institute of physics.

एमएलए उद्धरण

American Institute of Physics. Gratuate Programs in Physics, Astronomy and Related Fields. American Institute of physics.