Tubman, W. V. S. (1969). President William V. S. Tubman of Liberia speaks: Covering addresses, messages, speeches and statements 1944-1959 (2nd ed.). Department of Information and Cultural Affairs.
Chicago-referens (17:e uppl.)Tubman, William V. S. President William V. S. Tubman of Liberia Speaks: Covering Addresses, Messages, Speeches and Statements 1944-1959. 2nd ed. Monrovia, Liberia: Department of Information and Cultural Affairs, 1969.
MLA-referens (8:e uppl.)Tubman, William V. S. President William V. S. Tubman of Liberia Speaks: Covering Addresses, Messages, Speeches and Statements 1944-1959. 2nd ed. Department of Information and Cultural Affairs, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.