Gaya APA
dkk., R, C, C. (1973).
Partical Handbook of Industrial Traffic management (Fifth edition).
-:
The Traffic servise Comporation.
Gaya MLA
dkk., Richard, C., Colton,.
"Partical Handbook of Industrial Traffic management".
Fifth edition
-:
The Traffic servise Comporation,
1973.
Text.