Gaya APA

Depdiknas, ., Alexander, . (1985,1989,1996,s.a.,2000,1984,1975,1992). Developing Skills (an Integrated Course For Intermediate Student) . Yogyakarta: Kanisius.

Gaya MLA

Depdiknas, ., Alexander, . "Developing Skills (an Integrated Course For Intermediate Student)". Yogyakarta: Kanisius, 1985,1989,1996,s.a.,2000,1984,1975,1992. Text.