Cita APA (7a ed.)

Fisher, E. P. (1992). The impact of play on development: A meta-analysis. [s.n.].

Cita Chicago Style (17a ed.)

Fisher, Edward P. The Impact of Play on Development: A Meta-analysis. [S.l.]: [s.n.], 1992.

Cita MLA (9a ed.)

Fisher, Edward P. The Impact of Play on Development: A Meta-analysis. [s.n.], 1992.