Cita APA

Ader, H. J., & Mellenbergh, G. J. (1999). Research methodology in the life, behavioural, and social sciences. London ; Thousand Oaks Calif.: SAGE Publications.

Citación estilo Chicago

Ader, Herman J., and G. J. Mellenbergh. Research Methodology in the Life, Behavioural, and Social Sciences. London ; Thousand Oaks Calif.: SAGE Publications, 1999.

Cita MLA

Ader, Herman J., and G. J. Mellenbergh. Research Methodology in the Life, Behavioural, and Social Sciences. London ; Thousand Oaks Calif.: SAGE Publications, 1999.