Cita APA (7a ed.)
CALSYN, R., & WINTER, J. (2000). WHO ATTENDS SENIOR CENTERS?
Cita Chicago Style (17a ed.)
CALSYN, R.J, y J.P WINTER. WHO ATTENDS SENIOR CENTERS? 2000.
Cita MLA (9a ed.)
CALSYN, R.J, y J.P WINTER. WHO ATTENDS SENIOR CENTERS? 2000.
Precaución: Estas citas no son 100% exactas.