ALWIN, R. H. (1969). Algebra-programmed. Prentice-Hall.
Chicago-čujuhus (17. p.)ALWIN, Robert H. Algebra-programmed. Englewood Cliffs: Prentice-Hall, 1969.
MLA-čujuhus (9. p.)ALWIN, Robert H. Algebra-programmed. Prentice-Hall, 1969.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.