M.H. de Young Memorial Museum & Wingert, P. S. (1948). African negro sculpture: A loan exhibition. M.H. De Young Memorial Museum.
Lua i Stíl Chicago (17ú heag.)M.H. de Young Memorial Museum agus Paul S. Wingert. African Negro Sculpture: A Loan Exhibition. San Francisco: M.H. De Young Memorial Museum, 1948.
Lua MLA (8ú heag.)M.H. de Young Memorial Museum agus Paul S. Wingert. African Negro Sculpture: A Loan Exhibition. M.H. De Young Memorial Museum, 1948.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.