Gaya APA
M., O, J., R., K, T. (1996).
An Introduction to GMDSS (Revised GOC Edition) .
Sebastopol, CA:
Unauthorised photocopying.
Gaya MLA
M., Olsen, Jann., R., Kristensen, Tor.
"An Introduction to GMDSS (Revised GOC Edition)".
Sebastopol, CA:
Unauthorised photocopying,
1996.
Text.