Cita APA (7a ed.)

Hüppe, M., & Janke, W. (1998). Emotional reactivity in the elderly: Some basic problems and results. Psychologische Beiträge, 40(1), 113-135.

Cita Chicago Style (17a ed.)

Hüppe, Michael, y Wilhelm Janke. "Emotional Reactivity in the Elderly: Some Basic Problems and Results." Psychologische Beiträge 40, no. 1 (1998): 113-135.

Cita MLA (9a ed.)

Hüppe, Michael, y Wilhelm Janke. "Emotional Reactivity in the Elderly: Some Basic Problems and Results." Psychologische Beiträge, vol. 40, no. 1, 1998, pp. 113-135.