Gaya APA
Palmer, A. (1979).
Brown signalling how to learn the international code of signal .
Inggris:
Gaslow Brown,SON & Ferguson,LTD.
Gaya MLA
Palmer, A.R..
"Brown signalling how to learn the international code of signal".
Inggris:
Gaslow Brown,SON & Ferguson,LTD,
1979.
Text.