Παραπομπή APA

Samuel J Leffler. (1989). The design and implementation of 4.3 BSD UNIX Operating system. Addison-Wesley Publishing.

Παραπομπή Chicago Style

Samuel J Leffler. The Design and Implementation of 4.3 BSD UNIX Operating System. Addison-Wesley Publishing, 1989.

Παραπομπή MLA

Samuel J Leffler. The Design and Implementation of 4.3 BSD UNIX Operating System. Addison-Wesley Publishing, 1989.