APA (7 ম সংস্করণ) উদ্ধৃতি

Institute of Electrical and Electronics Engineers. (1993). Information technology-portable operating system interface (POSIX): Shell and utilities. IEEE.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Institute of Electrical and Electronics Engineers. Information Technology-portable Operating System Interface (POSIX): Shell and Utilities. New York, N.Y: IEEE, 1993.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Institute of Electrical and Electronics Engineers. Information Technology-portable Operating System Interface (POSIX): Shell and Utilities. IEEE, 1993.