APA Style
Siregar, M.. (1980).
Proceeding Loka Karya Karet .
:
Rubber Research Centre.
Chicago Style
Siregar, M..
Proceeding Loka Karya Karet.
:
Rubber Research Centre,
1980.
Text.
MLA Style
Siregar, M..
Proceeding Loka Karya Karet.
:
Rubber Research Centre,
1980.
Text.
Turabian Style
Siregar, M..
Proceeding Loka Karya Karet.
:
Rubber Research Centre,
1980.
Print.