Cita APA (7th ed.)

Mills, M., Van de Bunt, G., & Bruijn, J. d. Comparative research: Persistent problems and promising solutions.

Cita Chicago (17th ed.)

Mills, Melinda, Gerhard Van de Bunt, i Jeanne de Bruijn. Comparative Research: Persistent Problems and Promising Solutions.

Cita MLA (9th ed.)

Mills, Melinda, et al. Comparative Research: Persistent Problems and Promising Solutions.