Gaya APA

Alexander, L.G.. (1975). Practice and Progress (New Concept English); An Integrated Course For Pre-Intermediate Students (Cet.1). Yogyakarta: Kanisius.

Gaya Chicago

Alexander, L.G.. Practice and Progress (New Concept English); An Integrated Course For Pre-Intermediate Students. Cet.1 Yogyakarta: Kanisius, 1975. Text.

Gaya MLA

Alexander, L.G.. Practice and Progress (New Concept English); An Integrated Course For Pre-Intermediate Students. Cet.1 Yogyakarta: Kanisius, 1975. Text.

Gaya Turabian

Alexander, L.G.. Practice and Progress (New Concept English); An Integrated Course For Pre-Intermediate Students. Cet.1 Yogyakarta: Kanisius, 1975. Print.