Cita APA (7a ed.)
Gelpi, E. (1979). A future for life lifelong education. Department of Adult and higher education.
Cita Chicago Style (17a ed.)
Gelpi, Ettore. A Future for Life Lifelong Education. Manchester, MI.: Department of Adult and higher education, 1979.
Cita MLA (9a ed.)
Gelpi, Ettore. A Future for Life Lifelong Education. Department of Adult and higher education, 1979.
Precaución: Estas citas no son 100% exactas.