Gaya APA

Alexander, L. (1978). New Concept English Developing Skills : Recorded Drills: Tapescript / L.G. Alexander . : Penerbit Kanisius(Anggota IKAPI).

Gaya MLA

Alexander, L.G.. "New Concept English Developing Skills : Recorded Drills: Tapescript / L.G. Alexander". : Penerbit Kanisius(Anggota IKAPI), 1978. Textbook.