Gaya APA

Overzicht Ada: 20(1990-1991), 21(1991-1992), 22(1992-1993) . ( 1990 dsl). s-Gravenhage: NUFFIC.

Gaya MLA

Overzicht Ada: 20(1990-1991), 21(1991-1992), 22(1992-1993) . . s-Gravenhage: NUFFIC, 1990 dsl. Majalah.