APA (7th ed.) Citation

Borden, B. S., Gaines, R. S., & Shapiro, N. Z. (1979). The MH message handling system: User's manual. Rand.

Chicago Style (17th ed.) Citation

Borden, Bruce S., R. Stockton Gaines, and Norman Zalmon Shapiro. The MH Message Handling System: User's Manual. Santa Monica, CA: Rand, 1979.

MLA (9th ed.) Citation

Borden, Bruce S., et al. The MH Message Handling System: User's Manual. Rand, 1979.