Gaya APA
Nankivell-Anston, S., Jackson, D. (2006).
Science Experiments With Simple Machines .
Inggris:
Grolier International.
Gaya MLA
Nankivell-Anston, Sally., Jackson, Dorothy.
"Science Experiments With Simple Machines".
Inggris:
Grolier International,
2006.
Text.