Gaya APA
Liz, ., John, S, ,.
(1996).
Headway;: Student's book Elementary
(
XVII)
.
New York:
Oxford Univ. Press.
Gaya MLA
Liz, ., John, Soars, ,.
"Headway;: Student's book Elementary".
XVII
New York:
Oxford Univ. Press,
1996.
Text.