Ziefle, H. Historical forces, German departments, and the curriculum in small liberal arts colleges in the Midwest: Helmut Ziefle. Teaching German in twentieth century America.(2001).
Citação do estilo Chicago (17ª ed.)Ziefle, Helmut. "Historical Forces, German Departments, and the Curriculum in Small Liberal Arts Colleges in the Midwest: Helmut Ziefle." Teaching German in Twentieth Century America.(2001) .
Citação MLA (8ª ed.)Ziefle, Helmut. "Historical Forces, German Departments, and the Curriculum in Small Liberal Arts Colleges in the Midwest: Helmut Ziefle." Teaching German in Twentieth Century America.(2001), .
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.