एपीए उद्धरण

Alan Richards. (1998). Birds of grey: Hunters of the sky. Philadelphia, Pennsylvania: Courage Books.

शिकागो स्टाइल उद्धरण

Alan Richards. Birds of Grey: Hunters of the Sky. Philadelphia, Pennsylvania: Courage Books, 1998.

एमएलए उद्धरण

Alan Richards. Birds of Grey: Hunters of the Sky. Philadelphia, Pennsylvania: Courage Books, 1998.