APA (7th ed.) Citation

Craddock, H. (2012). Shale gas: The facts about chemical additives. Knovel.

Chicago Style (17th ed.) Citation

Craddock, Henry. Shale Gas: The Facts About Chemical Additives. [Norwich, N.Y.]: Knovel, 2012.

MLA (9th ed.) Citation

Craddock, Henry. Shale Gas: The Facts About Chemical Additives. Knovel, 2012.