Gaya APA
Hearn, Izabella. ().
Discover English (student book) .
:
Singapore, Pearson Longman.
Gaya Chicago
Hearn, Izabella.
Discover English (student book).
:
Singapore, Pearson Longman,
.
.
Gaya MLA
Hearn, Izabella.
Discover English (student book).
:
Singapore, Pearson Longman,
.
.
Gaya Turabian
Hearn, Izabella.
Discover English (student book).
:
Singapore, Pearson Longman,
.
.