Cita APA (7a ed.)
Mortensen, D. G., & Schmuller, A. M. (1959). Guidance in today's schools.
Cita estilo Chicago (17a ed.)
Mortensen, Donald G., y Allen M. Schmuller. Guidance in Today's Schools. 1959.
Cita MLA (9a ed.)
Mortensen, Donald G., y Allen M. Schmuller. Guidance in Today's Schools. 1959.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.