why did not i get installation CD with my mac book retina display 13", and let me know what are the tings i get with my mac book pro with free of cost?

New Mac do not come with a CD or any install media.

If problem you reinstall using Recovery. See:

OS X: About OS X Recovery - Apple Support

You can download the OS that came with your computer and save the OS installer in case of emergencies.

http://www.macworld.com/article/2056561/how-to-make-a-bootable-mavericks-install -drive.html

http://www.macworld.com/article/2367748/how-to-make-a-bootable-os-x-10-10-yosemi te-install-drive.html

MacBook Pro

http://store.apple.com/us/buy-mac/macbook-pro

What’s in the box.

• MacBook Pro
• Power adapter, AC wall plug, and power cord

No install media (CDs or DVDs) are included with Macs anymore.