APA (7th ed.) Citation

Pugh, K. (1994). UNIX for the MS-DOS user. PTR Prentice-Hall.

Chicago Style (17th ed.) Citation

Pugh, Kenneth. UNIX for the MS-DOS User. Englewood Cliffs, NJ: PTR Prentice-Hall, 1994.

MLA (9th ed.) Citation

Pugh, Kenneth. UNIX for the MS-DOS User. PTR Prentice-Hall, 1994.