yum install package with version
$ yum --showduplicates list httpd | expand
Available Packages
httpd.x86_64 2.4.6-6.fc20 fedora
httpd.x86_64 2.4.10-1.fc20 updates
# To see what particular versions are available to you via yum you can use the --showduplicates switch.
# It gives you a list like "package name.architecture version"
sudo yum install <package name>-<version info>
sudo yum install httpd-2.4.6-6
sudo yum install httpd-2.4.6-6.fc20.x86_64