Cita APA

Trim, J. L. M. (1980). Systems development in adult language learning: A European unit credit system for modern language learning by adults. Oxford [etc.]: Pergamon press.

Citación estilo Chicago

Trim, J. L. M. Systems Development in Adult Language Learning: A European Unit Credit System for Modern Language Learning By Adults. Oxford [etc.]: Pergamon press, 1980.

Cita MLA

Trim, J. L. M. Systems Development in Adult Language Learning: A European Unit Credit System for Modern Language Learning By Adults. Oxford [etc.]: Pergamon press, 1980.