Gratton, L. (1966). High-energy astrophysics =: Astrofisica delle alte energie. New York: Academic Press.
Παραπομπή Chicago StyleGratton, L. High-energy Astrophysics =: Astrofisica Delle Alte Energie. New York: Academic Press, 1966.
Παραπομπή MLAGratton, L. High-energy Astrophysics =: Astrofisica Delle Alte Energie. New York: Academic Press, 1966.
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