Index generalis ETL / BETL 1982 - 1997.

MLA

Van Belle, Gilbert. Index Generalis Etl / Betl 1982 - 1997. Leuven: University press, 1999.

APA

Van Belle, G. (1999). Index generalis ETL / BETL 1982 - 1997. Leuven: University press.

Chicago

Van Belle, Gilbert. Index Generalis ETL / BETL 1982 - 1997. Leuven: University press, 1999.