Lua APA (7ú heag.)

HAUGEN, B. (2006). LANGSTON HUGHES THE VOICE OF HARLEM. COMPASS POINT BOOKS.

Lua i Stíl Chicago (17ú heag.)

HAUGEN, BRENDA. LANGSTON HUGHES THE VOICE OF HARLEM. MINNEAPOLIS: COMPASS POINT BOOKS, 2006.

Lua MLA (9ú heag.)

HAUGEN, BRENDA. LANGSTON HUGHES THE VOICE OF HARLEM. COMPASS POINT BOOKS, 2006.

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