Gaya APA
Hello America High Intermediate: Unit 7. ().
:
Grolier International.
Gaya Chicago
Hello America High Intermediate: Unit 7.
.
:
Grolier International,
.
CD-ROM.
Gaya MLA
Hello America High Intermediate: Unit 7.
.
:
Grolier International,
.
CD-ROM.
Gaya Turabian
Hello America High Intermediate: Unit 7.
:
Grolier International,
.
CD-ROM.