Cita APA (7th ed.)

HOFEDITZ, C. (1979). EASY TO LEARN COMPUTERS AND DATA PROCESSING. VALCO PUB. CO.

Cita Chicago (17th ed.)

HOFEDITZ, C.A. EASY TO LEARN COMPUTERS AND DATA PROCESSING. NEW YORK: VALCO PUB. CO, 1979.

Cita MLA (9th ed.)

HOFEDITZ, C.A. EASY TO LEARN COMPUTERS AND DATA PROCESSING. VALCO PUB. CO, 1979.