APA (7th ed.) Citation

Sackman, H. (1973). Preliminary investigation of real-world problem solving with and without computers. The Rand Corporation.

Chicago Style (17th ed.) Citation

Sackman, Harold. Preliminary Investigation of Real-world Problem Solving with and Without Computers. Sta. Monica, Ca: The Rand Corporation, 1973.

MLA (9th ed.) Citation

Sackman, Harold. Preliminary Investigation of Real-world Problem Solving with and Without Computers. The Rand Corporation, 1973.