Gaya APA

Alexander, L, G. (1975). Practice and Progress : An Integrated Course for Pre-Intermediate Students / L. G. Alexander . Yogyakarta: Kanisius.

Gaya MLA

Alexander, L., G.. "Practice and Progress : An Integrated Course for Pre-Intermediate Students / L. G. Alexander". Yogyakarta: Kanisius, 1975. Text.