एपीए उद्धरण

(1921). Our wonder world: A library of knowledge. Boston: Geo. L. Shuman and Co..

शिकागो स्टाइल उद्धरण

Our Wonder World: A Library of Knowledge. Boston: Geo. L. Shuman and Co., 1921.

एमएलए उद्धरण

Our Wonder World: A Library of Knowledge. Boston: Geo. L. Shuman and Co., 1921.