APA

Greenley H. L., Library of Congress, . (2019). The world oil market and U.S. policy: background and select issues for Congress. [Washington, D.C.]: Congressional Research Service.

Chicago

Greenley Heather L, Library of Congress, . 2019. The world oil market and U.S. policy: background and select issues for Congress. [Washington, D.C.]: Congressional Research Service.

Harvard

Greenley H. L., Library of Congress, . (2019). The world oil market and U.S. policy: background and select issues for Congress. [Washington, D.C.]: Congressional Research Service.

MLA

Greenley Heather L, Library of Congress, . The world oil market and U.S. policy: background and select issues for Congress. [Washington, D.C.]: Congressional Research Service. 2019.