APA aipamena

Ashley, R., & Frnandez, J. N. (1990). Teach yourself UNIX. BPB.

Chicago Style aipamena

Ashley, Ruth, and Judi N. Frnandez. Teach Yourself UNIX. New Delhi: BPB, 1990.

MLA aipamena

Ashley, Ruth, and Judi N. Frnandez. Teach Yourself UNIX. BPB, 1990.