The Guile 2.0 Reference Manual (for Guile version 2.0.3)	An Introduction to Python The Python Tutorial (version 3.2)	The Python Language Reference Manual (version 3.2)	The Apache HTTP Server Reference Manual (for Apache version 2.2.17)
The Org Mode 7 Reference Manual (for Org version 7.3)	PostgreSQL 9.0 Reference Manual Volume 1A	PostgreSQL 9.0 Reference Manual Volume 1B	PostgreSQL 9.0 Reference Manual Volume 2
PostgreSQL 9.0 Reference Manual Volume 3	The Perl Language Reference Manual (for Perl version 5.12.1)	An Introduction to GCC	An Introduction to R the R tutorial
GNU Scientific Library Reference Manual Third Edition (v1.12)	GNU Octave Manual Version 3	Valgrind 3.3 Advanced Debugging and Profiling for GNU/Linux applications

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