al.], J. T. (1980). Systems development in adult language laerning: A European until credit system for modern language learning by adult. Pergoman Press.
Chicago Style Citational.], J.L.M. Trim...[et. Systems Development in Adult Language Laerning: A European Until Credit System for Modern Language Learning By Adult. Pergoman Press, 1980.
MLA Citational.], J.L.M. Trim...[et. Systems Development in Adult Language Laerning: A European Until Credit System for Modern Language Learning By Adult. Pergoman Press, 1980.
Warning: These citations may not always be 100% accurate.