HAIDUK, H. P., & ROSS, P. W. (1991). Instructor's manual and key for increasing your produc-tivity with lotus release 2.2. Glencoe.
Chicago-čujuhus (17. p.)HAIDUK, H. Paul, juo Paul W. ROSS. Instructor's Manual and Key for Increasing Your Produc-tivity with Lotus Release 2.2. Lake Forest: Glencoe, 1991.
MLA-čujuhus (9. p.)HAIDUK, H. Paul, juo Paul W. ROSS. Instructor's Manual and Key for Increasing Your Produc-tivity with Lotus Release 2.2. Glencoe, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.