• Hunt, C. (2002). TCP/IP network administration (3rd ed.). Sebastopol, CA: OReilly. Chapter 1, Overview of TCP/IP, provides a good summary of the seven-layer OSI model and the TCP/IP protocol architecture. 
• Kurose, James F. and Ross, Keith W. (2000). Computer Networking: A Top-Down Approach Featuring the Internet. Boston: Addison Wesley. This book is organized around the seven-layer OSI model, so it is good supplemental reading for the part of this chapter which discusses that model.
• Y. Rekhter; B. Moskowitz; D. Karrenberg; G. J. de Groot; E. Lear (February 1996). Address Allocation for Private Internets (https://tools.ietf.org/html/rfc1918). Network Working Group IETF. This is the IETF's RFC defining private networks.