HAIDUK, H. P., & ROSS, P. W. (1991). Instructor's manual and key for increasing your produc-tivity with lotus release 2.2. Glencoe.
Lua i Stíl Chicago (17ú heag.)HAIDUK, H. Paul, agus Paul W. ROSS. Instructor's Manual and Key for Increasing Your Produc-tivity with Lotus Release 2.2. Lake Forest: Glencoe, 1991.
Lua MLA (9ú heag.)HAIDUK, H. Paul, agus Paul W. ROSS. Instructor's Manual and Key for Increasing Your Produc-tivity with Lotus Release 2.2. Glencoe, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.