To link against the Intel MKL libraries (for BLAS, LAPACK etc...)

ifort -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -lguide -lpthread myprog.f

The above assumes you have done "module load mkl/64/10.1.0.019" (or which ever version of MKL is available to you).

Intel Math Kernel Library Link Line Advisor

This page may be of some use also - it produces a recommended set of directives given target OS, MPI version etc:

http://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/