Cita APA (7a ed.)

Sitlington, P. L., & Frank, A. R. (1998). Follow-up studies: A practitioner's handbook. Pro-Ed.

Cita Chicago Style (17a ed.)

Sitlington, Patricia L., y Alan R. Frank. Follow-up Studies: A Practitioner's Handbook. Austin: Pro-Ed, 1998.

Cita MLA (9a ed.)

Sitlington, Patricia L., y Alan R. Frank. Follow-up Studies: A Practitioner's Handbook. Pro-Ed, 1998.