Gaya APA

ALEXANDER, L. (1975). Practice and progress: an integrated course for pre-intermediate students / L.G. Alexander ; illustrations by Michael Ffolkes, Graham and Gus . : Penerbit Kanisius.

Gaya MLA

ALEXANDER, L.G.. "Practice and progress: an integrated course for pre-intermediate students / L.G. Alexander ; illustrations by Michael Ffolkes, Graham and Gus". : Penerbit Kanisius, 1975. Referensi.