Gaya APA
Yuan, L.
(2010).
Science 2B: Textbook
(
2B SD International Edition)
.
Singapore:
Marshall Cavendish, 2003.
Gaya MLA
Yuan, Ling.
"Science 2B: Textbook".
2B SD International Edition
Singapore:
Marshall Cavendish, 2003,
2010.
.