Cita APA (7a ed.)

Library of Congress. Federal Research Division & Haggerty, R. A. (1990). El Salvador: A country study (2nd ed.). Federal Research Division : For sale by the Supt. of Docs., U.S. G.P.O..

Cita Chicago Style (17a ed.)

Library of Congress. Federal Research Division y Richard A. Haggerty. El Salvador: A Country Study. 2nd ed. Washington, D.C.: Federal Research Division : For sale by the Supt. of Docs., U.S. G.P.O., 1990.

Cita MLA (8a ed.)

Library of Congress. Federal Research Division y Richard A. Haggerty. El Salvador: A Country Study. 2nd ed. Federal Research Division : For sale by the Supt. of Docs., U.S. G.P.O., 1990.