Cita APA (7a ed.)

Ayres, L. P. (1909). Laggards in our schools: A study of retardation and elimination in city school systems. Charities publication committee.

Cita Chicago Style (17a ed.)

Ayres, Leonard Porter. Laggards in Our Schools: A Study of Retardation and Elimination in City School Systems. New York: Charities publication committee, 1909.

Cita MLA (8a ed.)

Ayres, Leonard Porter. Laggards in Our Schools: A Study of Retardation and Elimination in City School Systems. Charities publication committee, 1909.