Gaya APA
Thomson, A, &, M, A. (1986).
A practical English grammar, 4th ed. Cet.I 1960 .
Oxford:
Oxford Oxford University Press.
Gaya MLA
Thomson, A.J., &, Martinet,, A.V..
"A practical English grammar, 4th ed. Cet.I 1960 ".
Oxford:
Oxford Oxford University Press,
1986.
Buku.