Cita APA (7a ed.)
GRIGSBY, J. (1991). PATHS FOR FUTURE POPULATION AGING.
Cita Chicago Style (17a ed.)
GRIGSBY, J.S. PATHS FOR FUTURE POPULATION AGING. 1991.
Cita MLA (9a ed.)
GRIGSBY, J.S. PATHS FOR FUTURE POPULATION AGING. 1991.
Precaución: Estas citas no son 100% exactas.