APA-čujuhus (7. p.)
Einstein, A. The Collected Papers of Albert Einstein: The Berlin Years : Writings, 1918-1921. Princeton University.
Chicago-čujuhus (17. p.)
Einstein, Albert. The Collected Papers of Albert Einstein: The Berlin Years : Writings, 1918-1921. Princeton, EUA: Princeton University.
MLA-čujuhus (9. p.)
Einstein, Albert. The Collected Papers of Albert Einstein: The Berlin Years : Writings, 1918-1921. Princeton University.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.