Gaya APA
Silver, R, E., Bokhorst-Heng, W, D. (2016).
Quadrilingual Education in Singapore (1st ed.).
Singapore:
Springer.
Gaya MLA
Silver, Rita, Elaine.., Bokhorst-Heng, Wendy, D..
"Quadrilingual Education in Singapore".
1st ed.
Singapore:
Springer,
2016.
E Book.