Cita APA (7th ed.)

Hayes, E. N., & Sargent, P. Directory for exceptional children: Schools, services, other facilities ([1st ed., 1954-.). P. Sargent.

Cita Chicago (17th ed.)

Hayes, Eugene Nelson, i Porter Sargent. Directory for Exceptional Children: Schools, Services, Other Facilities. [1st ed., 1954-. Boston: P. Sargent.

Cita MLA (9th ed.)

Hayes, Eugene Nelson, i Porter Sargent. Directory for Exceptional Children: Schools, Services, Other Facilities. [1st ed., 1954-. P. Sargent.