APA

collin، p . h, . (1987). comprehensive dictionary of information technology. london: evans brothers limited،.

Chicago

collin، p . h, . 1987. comprehensive dictionary of information technology. london: evans brothers limited،.

Harvard

collin، p . h, . (1987). comprehensive dictionary of information technology. london: evans brothers limited،.

MLA

collin، p . h, . comprehensive dictionary of information technology. london: evans brothers limited،. 1987.