Cita APA (7a ed.)
Williams, R. (1975). The international testing program: Aims, progress and problems seen from IITA.
Cita Chicago Style (17a ed.)
Williams, R.J. The International Testing Program: Aims, Progress and Problems Seen from IITA. 1975.
Cita MLA (9a ed.)
Williams, R.J. The International Testing Program: Aims, Progress and Problems Seen from IITA. 1975.
Precaución: Estas citas no son 100% exactas.