Gaya APA

Swanson, C, P., Vann, I, W, C. (NULL). Comparative approach to american history . [s.l]:: [s.l]: Voice of America Forum Lectures; 1968.

Gaya MLA

Swanson, Carl, P.., Vann, I., Woodward,, C.. "Comparative approach to american history". [s.l]:: [s.l]: Voice of America Forum Lectures; 1968, NULL. Text.