APA (7th ed.) Citation

Harslem, E. F., & Heafner, J. F. (1971). The ISPL basic file system and file subsystem for support of computing research. Rand.

Chicago Style (17th ed.) Citation

Harslem, Eric F., and J. F. Heafner. The ISPL Basic File System and File Subsystem for Support of Computing Research. Santa Monica, Calif.: Rand, 1971.

MLA (9th ed.) Citation

Harslem, Eric F., and J. F. Heafner. The ISPL Basic File System and File Subsystem for Support of Computing Research. Rand, 1971.