APA Style
Oil World Vol. 56 No. 16 / 19 April 2013. (2013).
Cambridge, Mass:
ISTA Mielke GmbH.
Chicago Style
Oil World Vol. 56 No. 16 / 19 April 2013.
1.
Cambridge, Mass:
ISTA Mielke GmbH,
2013.
Hard Copy.
MLA Style
Oil World Vol. 56 No. 16 / 19 April 2013.
1.
Cambridge, Mass:
ISTA Mielke GmbH,
2013.
Hard Copy.
Turabian Style
Oil World Vol. 56 No. 16 / 19 April 2013.
Cambridge, Mass:
ISTA Mielke GmbH,
2013.
Hard Copy.