Lua APA (7ú heag.)
ebrary, Inc, & Navarro, G. L. (2011). Marcellus Shale and shale gas: Facts and considerations. Nova Science Publishers.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Gabriel L. Navarro. Marcellus Shale and Shale Gas: Facts and Considerations. Hauppauge, N.Y.: Nova Science Publishers, 2011.
Lua MLA (9ú heag.)
ebrary, Inc, agus Gabriel L. Navarro. Marcellus Shale and Shale Gas: Facts and Considerations. Nova Science Publishers, 2011.
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