XL Fortran for AIX user's guide :
version 4 release 1.
APA Citation
International Business Machines Corporation. (1996). XL Fortran for AIX user's guide: version 4 release 1. Austin, Tex.: International Business Machines Corporation.
MLA Citation
International Business Machines Corporation. XL Fortran for AIX User's Guide: Version 4 Release 1. Austin, Tex.: International Business Machines Corporation, 1996.
Warning: These citations may not always be complete (especially for serials).