APA (7th ed.) Citation

ISTA Mielke GmbH & Mielke, T. (1997). Oil world annual 1997. ISTA Mielke GmbH.

Chicago Style (17th ed.) Citation

ISTA Mielke GmbH and Thomas Mielke. Oil World Annual 1997. Hamburg: ISTA Mielke GmbH, 1997.

MLA (9th ed.) Citation

ISTA Mielke GmbH and Thomas Mielke. Oil World Annual 1997. ISTA Mielke GmbH, 1997.

Warning: These citations may not always be 100% accurate.