z/OS V2R1.0 MVS Using the Subsystem Interface
IBM
z/VSE V4R2 System Control Statements
z/VM: RSCS Networking Messages and Codes
z/OS V1R1.0 MVS Callable Services for HLL
DataInterchange Client User's Guide
IBM Corp.
DataInterchange Programmer’s Reference
Kathleen D’Adamo, IBM Global Services