Henderson, W., & ed. Engels: Selected writings, History, Economics, Social Cristicism, Philosophy, Letters. Penguin.
Chicago-čujuhus (17. p.)Henderson, W.O, juo ed. Engels: Selected Writings, History, Economics, Social Cristicism, Philosophy, Letters. Baltimore: Penguin.
MLA-čujuhus (9. p.)Henderson, W.O, juo ed. Engels: Selected Writings, History, Economics, Social Cristicism, Philosophy, Letters. Penguin.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.