Cita APA (7a ed.)

Individual Differences Research Group. (2003). Individual differences research: IDR. Individual Differences Research Group.

Cita Chicago Style (17a ed.)

Individual Differences Research Group. Individual Differences Research: IDR. Woodburn, OR: Individual Differences Research Group, 2003.

Cita MLA (8a ed.)

Individual Differences Research Group. Individual Differences Research: IDR. Individual Differences Research Group, 2003.