APA aipamena

Heyel, C. (1969). Computers, office machines etc. Macmillan.

Chicago Style aipamena

Heyel, Carl. Computers, Office Machines Etc. London: Macmillan, 1969.

MLA aipamena

Heyel, Carl. Computers, Office Machines Etc. Macmillan, 1969.