Gaya APA
LOCKWOOD, S. (2009).
TOP TIPS FOR IELTS ACADEMIC (1).
UNITED KINGDOM:
UNIVERSITY OF CAMBRIDGE ESOL EXAMINATIONS.
Gaya MLA
LOCKWOOD, SANDRA.
"TOP TIPS FOR IELTS ACADEMIC".
1
UNITED KINGDOM:
UNIVERSITY OF CAMBRIDGE ESOL EXAMINATIONS,
2009.
Text.