Cita APA (7a ed.)

ALEXANDER, L. (1979). Developing skills (recorded Drills: Tapescript). Kanisius.

Cita Chicago Style (17a ed.)

ALEXANDER, L.G. Developing Skills (recorded Drills: Tapescript). Yogyakarta: Kanisius, 1979.

Cita MLA (9a ed.)

ALEXANDER, L.G. Developing Skills (recorded Drills: Tapescript). Kanisius, 1979.