Dyfyniad APA

Vendel, T. M., & Williams, W. H. (1969). Introduction to data processing and COBOL. McGraw-Hill.

Dyfyniad Arddull Chicago

Vendel, Thomas M., and William H. Williams. Introduction to Data Processing and COBOL. New York: McGraw-Hill, 1969.

Dyfyniad MLA

Vendel, Thomas M., and William H. Williams. Introduction to Data Processing and COBOL. McGraw-Hill, 1969.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.