Cita APA (7th ed.)
Cohen, R., & Siegel, A. W. Context and Development. Lawrence Erlbaum Associates.
Cita Chicago (17th ed.)
Cohen, Robert, i Alexander W. Siegel. Context and Development. Hillsdale, EUA: Lawrence Erlbaum Associates.
Cita MLA (9th ed.)
Cohen, Robert, i Alexander W. Siegel. Context and Development. Lawrence Erlbaum Associates.
Atenció: Aquestes cites poden no estar 100% correctes.