Gaya APA
THE BLUE MARBLE 1 : AN INTRODUCTION TO GEOGRAPHY ACTIVITY BOOK NORMAL(ACADEMIC). (2006).
SINGAPORE:
PEARSON EDUCATION SOUTH ASIA.
Gaya MLA
THE BLUE MARBLE 1 : AN INTRODUCTION TO GEOGRAPHY ACTIVITY BOOK NORMAL(ACADEMIC).
.
SINGAPORE:
PEARSON EDUCATION SOUTH ASIA,
2006.
Text.