APA цитиране

Leffler, S. J., & McKusick, M. K. (1991). The design and implementation of the 4.3BSD UNIX operating system answer book. Reading MA: Addison-Wesley Pub..

Чикагска система за цитиране

Leffler, Samuel J., и Marshall Kirk McKusick. The Design and Implementation of the 4.3BSD UNIX Operating System Answer Book. Reading MA: Addison-Wesley Pub., 1991.

MLA формат за цитиране

Leffler, Samuel J., и Marshall Kirk McKusick. The Design and Implementation of the 4.3BSD UNIX Operating System Answer Book. Reading MA: Addison-Wesley Pub., 1991.

Внимание: Тези цитати може да не са 100% точни.