MYLIUS RALPH. (1987). LOTUS 1-2-3 STUDENTS WORK BOOK AND INSTRUCTOR`S GUIDE. BPB PUBLICATIONS.
Citazione stile Chigago Style (17a edizione)MYLIUS RALPH. LOTUS 1-2-3 STUDENTS WORK BOOK AND INSTRUCTOR`S GUIDE. DELHI: BPB PUBLICATIONS, 1987.
Citatione MLA (9a ed.)MYLIUS RALPH. LOTUS 1-2-3 STUDENTS WORK BOOK AND INSTRUCTOR`S GUIDE. BPB PUBLICATIONS, 1987.
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