Παραπομπή APA

Time life. (1990). Time-life books: Understanding computers(vol.13) : alternative computers. Lifetime books.

Παραπομπή Chicago Style

Time life. Time-life Books: Understanding Computers(vol.13) : Alternative Computers. London: Lifetime books, 1990.

Παραπομπή MLA

Time life. Time-life Books: Understanding Computers(vol.13) : Alternative Computers. Lifetime books, 1990.