Cita APA (7a ed.)

Tinker, M. A. (1963). Legibility of print for children in the upper grades. [s.n.].

Cita Chicago Style (17a ed.)

Tinker, Miles A. Legibility of Print for Children in the Upper Grades. [S.l.]: [s.n.], 1963.

Cita MLA (9a ed.)

Tinker, Miles A. Legibility of Print for Children in the Upper Grades. [s.n.], 1963.