Astrophysics. Academic Press.
शिकागो स्टाइल उद्धरणAstrophysics. New York: Academic Press.
एमएलए उद्धरणAstrophysics. Academic Press.
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एपीए उद्धरण
Astrophysics. Academic Press.
शिकागो स्टाइल उद्धरणAstrophysics. New York: Academic Press.
एमएलए उद्धरणAstrophysics. Academic Press.