Gaya APA
ALEXANDER, L., ETHERTON, A. (2001).
Objective English test / A.R.B.Etherton (Cet.ke-17).
Yogyakarta:
Kanisius.
Gaya MLA
ALEXANDER, L.G.., ETHERTON, A.R.B..
"Objective English test / A.R.B.Etherton".
Cet.ke-17
Yogyakarta:
Kanisius,
2001.
Text.