Cita APA (7a ed.)
Aker, G. F. Adult education procedures, methods and techniques.
Cita estilo Chicago (17a ed.)
Aker, George F. Adult Education Procedures, Methods and Techniques.
Cita MLA (9a ed.)
Aker, George F. Adult Education Procedures, Methods and Techniques.
Precaución: Estas citas no son 100% exactas.