Vásconez Narváez, M. L. Will rogers: Native american cowboy, philosopher, and presidential advisor.
Chicago-viite (17. p.)Vásconez Narváez, María Lorena. Will Rogers: Native American Cowboy, Philosopher, and Presidential Advisor.
MLA-viite (8. p.)Vásconez Narváez, María Lorena. Will Rogers: Native American Cowboy, Philosopher, and Presidential Advisor.
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