(1972). Profiles of children and youth. s.n.
Cita Chicago (17th ed.)Profiles of Children and Youth. [s.l: s.n, 1972.
Cita MLA (9th ed.)Profiles of Children and Youth. s.n, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)