APA Style
Boer, G. de. (1954).
Practische rubberkennis .
Djakarta:
Ruygrok.
Chicago Style
Boer, G. de.
Practische rubberkennis.
Djakarta:
Ruygrok,
1954.
Hard Copy.
MLA Style
Boer, G. de.
Practische rubberkennis.
Djakarta:
Ruygrok,
1954.
Hard Copy.
Turabian Style
Boer, G. de.
Practische rubberkennis.
Djakarta:
Ruygrok,
1954.
Hard Copy.