APA Edition Citation

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

Chicago Edition Citation

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

MLA Edition Citation

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

Warning: These citations may not always be 100% accurate.