Library of Congress. Federal Research Division & Hanratty, D. M. (1991). Ecuador: A country study (3rd ed.). Federal Research Division, Library of Congress.
Chicagoスタイル(17版)引用形式Library of Congress. Federal Research Division , Dennis Michael Hanratty. Ecuador: A Country Study. 3rd ed. [Washington, D.C.]: Federal Research Division, Library of Congress, 1991.
MLA(8版)引用形式Library of Congress. Federal Research Division , Dennis Michael Hanratty. Ecuador: A Country Study. 3rd ed. Federal Research Division, Library of Congress, 1991.
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