APA Citation

Mielke, T., & ISTA Mielke GmbH. (1990). Oil world annual 1990. Hamburg: ISTA Mielke GmbH.

Chicago Style Citation

Mielke, Thomas, and ISTA Mielke GmbH. Oil World Annual 1990. Hamburg: ISTA Mielke GmbH, 1990.

MLA Citation

Mielke, Thomas, and ISTA Mielke GmbH. Oil World Annual 1990. Hamburg: ISTA Mielke GmbH, 1990.

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