एपीए उद्धरण

Roberts, L., & Lorena Roberts. (2003). Happy House: Teacher's Book. Oxford: Oxford University Press.

शिकागो स्टाइल उद्धरण

Roberts, Lorena, और Lorena Roberts. Happy House: Teacher's Book. Oxford: Oxford University Press, 2003.

एमएलए उद्धरण

Roberts, Lorena, और Lorena Roberts. Happy House: Teacher's Book. Oxford: Oxford University Press, 2003.