APA (7 वां संस्करण) प्रशस्ति पत्र
German, Greek, English, Spanish Teacher-Training Project, ebrary, Inc, & Gewehr, W. (1998). Aspects of modern language teaching in Europe. Routlege.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
German, Greek, English, Spanish Teacher-Training Project, Inc ebrary, और Wolf Gewehr. Aspects of Modern Language Teaching in Europe. London ; New York: Routlege, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
German, Greek, English, Spanish Teacher-Training Project, et al. Aspects of Modern Language Teaching in Europe. Routlege, 1998.
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