Gaya APA

Alexander, L, G. (1975). Practice And Progress : An integrated Course for Pre-Intermediate Students (1). Yogyakarta: Yayasan Kanisius.

Gaya MLA

Alexander, L., G.. "Practice And Progress : An integrated Course for Pre-Intermediate Students". 1 Yogyakarta: Yayasan Kanisius, 1975. Text.