APA Citation

Johnson, O. (2015). Building blocks from petroleum sludge: Leachability and toxicity studies. Research India Publications.

Chicago Style Citation

Johnson, O.A. Building Blocks From Petroleum Sludge: Leachability and Toxicity Studies. Research India Publications, 2015.

MLA Citation

Johnson, O.A. Building Blocks From Petroleum Sludge: Leachability and Toxicity Studies. Research India Publications, 2015.

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