Gaya APA
WAH, L, S. et al
(1994).
ISO 9000 IN CONSTRUCTION
.
SINGAPURE:
McGRAW-HILL BOOK COMPANY N.
Gaya MLA
WAH, LAM, SIEW. et al.
"ISO 9000 IN CONSTRUCTION".
SINGAPURE:
McGRAW-HILL BOOK COMPANY N,
1994.
Text.