Cita APA (7th ed.)
Doll, R. C. (1974). Curriculum improvement.
Cita Chicago (17th ed.)
Doll, Ronald C. Curriculum Improvement. 1974.
Cita MLA (9th ed.)
Doll, Ronald C. Curriculum Improvement. 1974.
Atenció: Aquestes cites poden no estar 100% correctes.