APA Style

Oil World Vol. 56 No. 7 / 15 February 2013. (2013). Germany: Thomas Mielke.

Chicago Style

Oil World Vol. 56 No. 7 / 15 February 2013. 1. Germany: Thomas Mielke, 2013. Hard Copy.

MLA Style

Oil World Vol. 56 No. 7 / 15 February 2013. 1. Germany: Thomas Mielke, 2013. Hard Copy.

Turabian Style

Oil World Vol. 56 No. 7 / 15 February 2013. Germany: Thomas Mielke, 2013. Hard Copy.