APA (7 वां संस्करण) प्रशस्ति पत्र

Siegel, E. The returns of Herbert Marcuse: Elke Siegel. "Escape to life" : German intellectuals in New York: a compendium on exile after 1933.(2012).

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Siegel, Elke. "The Returns of Herbert Marcuse: Elke Siegel." "Escape to Life" : German Intellectuals in New York: A Compendium on Exile After 1933.(2012) .

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Siegel, Elke. "The Returns of Herbert Marcuse: Elke Siegel." "Escape to Life" : German Intellectuals in New York: A Compendium on Exile After 1933.(2012), .