Mandel, E., & Sadler, L. (1982). Introduction to marxism (2nd. ed., rev. and expanded.). Pluto Press.
Lua i Stíl Chicago (17ú heag.)Mandel, Ernest, agus Lerisa Sadler. Introduction to Marxism. 2nd. ed., rev. and expanded. London: Pluto Press, 1982.
Lua MLA (9ú heag.)Mandel, Ernest, agus Lerisa Sadler. Introduction to Marxism. 2nd. ed., rev. and expanded. Pluto Press, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.