(1969). Dictionary of symbols of mathematical: Logic. North-Holland.
Chicago-čujuhus (17. p.)Dictionary of Symbols of Mathematical: Logic. Amsterdam: North-Holland, 1969.
MLA-čujuhus (9. p.)Dictionary of Symbols of Mathematical: Logic. North-Holland, 1969.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.