Cita APA (7th ed.)

EXCEL BOOKS. (2001). PERSONAL COMPUTER: SOFTWARE. EXCEL BOOK.

Cita Chicago (17th ed.)

EXCEL BOOKS. PERSONAL COMPUTER: SOFTWARE. NEW DELHI: EXCEL BOOK, 2001.

Cita MLA (9th ed.)

EXCEL BOOKS. PERSONAL COMPUTER: SOFTWARE. EXCEL BOOK, 2001.