Montanez-Rivera, C., & Johnson, L. A. (1992). Conformance test specifications for COBOL intrinsic function module. U.S. Dept. of Commerce, National Institute of Standards and Technology.

Montanez-Rivera, Carmelo, and L. Arnold Johnson. Conformance Test Specifications for COBOL Intrinsic Function Module. Gaithersburg, Md.: U.S. Dept. of Commerce, National Institute of Standards and Technology, 1992.

Montanez-Rivera, Carmelo, and L. Arnold Johnson. Conformance Test Specifications for COBOL Intrinsic Function Module. U.S. Dept. of Commerce, National Institute of Standards and Technology, 1992.