Siegel, E. The returns of Herbert Marcuse: Elke Siegel. "Escape to life" : German intellectuals in New York: a compendium on exile after 1933.(2012).
Chicago-viite (17. p.)Siegel, Elke. "The Returns of Herbert Marcuse: Elke Siegel." "Escape to Life" : German Intellectuals in New York: A Compendium on Exile After 1933.(2012) .
MLA-viite (8. p.)Siegel, Elke. "The Returns of Herbert Marcuse: Elke Siegel." "Escape to Life" : German Intellectuals in New York: A Compendium on Exile After 1933.(2012), .
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