Gaya APA

Etherton, A. (1975). Objective English Tests : elementary level / A.R.B. Etherton . : Penerbit Kanisius(Anggota IKAPI).

Gaya MLA

Etherton, A.R.B.. "Objective English Tests : elementary level / A.R.B. Etherton". : Penerbit Kanisius(Anggota IKAPI), 1975. Textbook.