एपीए उद्धरण

Sperry Smith, S. (1997). Early childhood mathematics. Boston: Allyn and Bacon.

शिकागो स्टाइल उद्धरण

Sperry Smith, Susan. Early Childhood Mathematics. Boston: Allyn and Bacon, 1997.

एमएलए उद्धरण

Sperry Smith, Susan. Early Childhood Mathematics. Boston: Allyn and Bacon, 1997.