Gaya APA
Nankivell-Aston, S. et al
(2007).
Science Experiments with Simple Machines
.
Malaysia:
Grolier Internasional.
Gaya MLA
Nankivell-Aston, Sally. et al.
"Science Experiments with Simple Machines".
Malaysia:
Grolier Internasional,
2007.
Text.