एपीए उद्धरण

M.Walker Robert, & Asimov Isaac. (1966). The world around you. New York: Lancer Books.

शिकागो स्टाइल उद्धरण

M.Walker Robert, और Asimov Isaac. The World Around You. New York: Lancer Books, 1966.

एमएलए उद्धरण

M.Walker Robert, और Asimov Isaac. The World Around You. New York: Lancer Books, 1966.