Gaya APA

Alexander, L. (1975). Practice and progress an integrated course for pre-intermediate students (Edisi 1). Yogyakarta: Yayasan Kanisius.

Gaya MLA

Alexander, L.G.. "Practice and progress an integrated course for pre-intermediate students". Edisi 1 Yogyakarta: Yayasan Kanisius, 1975. UMUM.