APA-ийн эшлэл(7 дахь хэвлэлт)

U.S. Energy Information Administration. Review of emerging resources , U.S. shale gas and shale oil plays.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

U.S. Energy Information Administration. Review of Emerging Resources , U.S. Shale Gas and Shale Oil Plays.

MLA -ийн эшлэл (9 дэх хэвлэлт)

U.S. Energy Information Administration. Review of Emerging Resources , U.S. Shale Gas and Shale Oil Plays.