Gaya APA

Bunch, B., Alexander, I, H. (). The timetables of technology a cronology of the most important people ì and events in the history of technology . New: New York: Simon & Schuster; 1993.

Gaya MLA

Bunch, Bryan., Alexander, I., Hellemans,. "The timetables of technology a cronology of the most important people ì and events in the history of technology". New: New York: Simon & Schuster; 1993, . Text.