APA
LUND P. H., HAYDEN B. A., . (1987). UNDERSTANDING AND USING WORDPERFECT. NEW YORK: WEST PUBLISHING COMPANY.
Chicago
LUND PATSY H, HAYDEN BARBARA A, . 1987. UNDERSTANDING AND USING WORDPERFECT. NEW YORK: WEST PUBLISHING COMPANY.
Harvard
LUND P. H., HAYDEN B. A., . (1987). UNDERSTANDING AND USING WORDPERFECT. NEW YORK: WEST PUBLISHING COMPANY.
MLA
LUND PATSY H, HAYDEN BARBARA A, . UNDERSTANDING AND USING WORDPERFECT. NEW YORK: WEST PUBLISHING COMPANY. 1987.