Spalding, M. W. (1950). Preschool manual: Section II stories. s.n.
Cita Chicago (17th ed.)Spalding, Maud W. Preschool Manual: Section II Stories. s.n, 1950.
Cita MLA (9th ed.)Spalding, Maud W. Preschool Manual: Section II Stories. s.n, 1950.
Atenció: Aquestes cites poden no estar 100% correctes.