Crawford, F. R. (1973). Business systems with punched card dta processing and systems. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Crawford, F. Robert. Business Systems with Punched Card Dta Processing and Systems. Englewood Cliffs, N.J: Prentice-Hall, 1973.
Citatione MLA (9a ed.)Crawford, F. Robert. Business Systems with Punched Card Dta Processing and Systems. Prentice-Hall, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.