American Institute of Physics. Gratuate Programs in Physics, Astronomy and Related Fields. American Institute of physics.
استشهاد بنمط شيكاغوAmerican Institute of Physics. Gratuate Programs in Physics, Astronomy and Related Fields. New York: American Institute of physics.
MLA استشهادAmerican Institute of Physics. Gratuate Programs in Physics, Astronomy and Related Fields. American Institute of physics.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.