Gaya APA
Hollie, J, D, M, S., Cmhamot, A, U. (2008).
LONGMAN KEYSTONE (F) : Workbook .
Amerika:
Pearson Education, Inc.
Gaya MLA
Hollie, John, De, Mado,, Sharroky., Cmhamot, Anna, Uhl.
"LONGMAN KEYSTONE (F) : Workbook".
Amerika:
Pearson Education, Inc,
2008.
Text.