Sync google apps (gmail) contacts directory with Mac address book
There is no direct way to get all the contacts from the directory directly to your Mac. If you open the section in the Contacts Mac OS application, it will never list its entire content but only let you search.

However, there is an easy workaround:


Open the Contacts web interface https://www.google.com/contacts
On the sidebar, find the Directory option. The entire content will now appear. 
Select all the entries. 
Add these to a group, i.e. "Corp. Directory"


Now, all these contacts will be imported to "My Contacts" and will be synched to the Mac.