Cita APA (7a ed.)

Eckler, J., & Weininger, O. (1988). Play and cognitive development in preschoolers: A critical review. [s.n.].

Cita Chicago Style (17a ed.)

Eckler, Judith, y Otto Weininger. Play and Cognitive Development in Preschoolers: A Critical Review. [S.l.]: [s.n.], 1988.

Cita MLA (9a ed.)

Eckler, Judith, y Otto Weininger. Play and Cognitive Development in Preschoolers: A Critical Review. [s.n.], 1988.