APA

Colbert D. A., . (1968). Data processing concepts. New York: McGraw-Hill.

Chicago

Colbert Douglas A, . 1968. Data processing concepts. New York: McGraw-Hill.

Harvard

Colbert D. A., . (1968). Data processing concepts. New York: McGraw-Hill.

MLA

Colbert Douglas A, . Data processing concepts. New York: McGraw-Hill. 1968.