Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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