This has popped up before, but since its a topic close to my heart try these:
Project Florida, Walt DIsney Productions 1967. Not commercially available
Master Planning for Walt DIsney World, Walt Disney Productions 1969. Not commercially available
Preview Edition Walt Disney World, Walt Disney Productions 1970
Pictorial Souvineer of Walt DIsney World 1972
Pictorial Souvineer of Walt DIsney World 1972 2nd ed
The Story of Walt Disney World, Walt Disney Productions 1976 2-76-3
Walt Disney World: The first decade 1981
Walt Disney World EPCOT Center, Walt Disney Productions 1982
Walt Disney Worlds`s EPCOT Center - Creating the new world of tomorrow 1982 0 8109 0819 0 1st ed
The Art of Walt Disney 1983 0 8109 8052 5 2nd ed
A pictorial souvineer of Walt Disney World 1989 Disney 0127 100005 1189
Walt Disney World 1989 Disney w0127 10003 989
Walt Disney World 20 magical years Disney w0127 10003 1190
The Disney Touch 1991 1 55623 385 x
The Man Behind the Magic 1991 0 670 82259 0
The Music of Disney (part of 3cd box set 1992)
Walt Disney - Hollywoods Dark Prince 1994 0 06 100789 7
Walt Disney World 1994
The Art of Walt Disney 1995 I 85227 503 0 3rd ed
Since the World Began 1996 07868 8219 0 (pb) 6248 3 (hb)
Building a Dream - The Art of Disney Architecture 1996 0 8109 3142 7
Walt Disney Imagineering 1996 0 7868 6246 7
Designing Disneys Theme Parks - The architecture of reassurance 1997 2 08013 639 9
The Disney Touch 1997 0 7863 1002 2 2nd ed
Team Rodent 1998 0 345 42280 5
Michael Eisner - Work in Progress 1998 0 14 0 28198 3
The Making of Disneys Animal Kingdom Theme Park 1998 0 7868 6402 8
The Celebration Chronicles 1999 0 345 41752 6
Celebration, USA 1999 0 8050 5560 6
Walt Disney World, a souvineer for the new Millenium 1999 0 7868 5406 5
Once upon an American Dream - The story of Euro Disneyland 2000 0 7006 0989 x
The Keys to the Kingdom 2000/1 0 06 662109 7
Married to the Mouse 2001 0 300 087071 hb 098286 pb
What would Walt do? An insiders story about the design and construction of WDW 2001 0 595 17203 2
Inside Disney 2002 0 7645 6443 9 2nd ed
Disneyland Paris AA guide 2002 0 7495 3374 9
Disneyland Paris 2002 souvineer guide
Disneyland Paris from sketch to reality April 2002 1st ed
Disney the ultimate visual guide 2002 0 7513 3913 x
Designing Disney (John Hench) 2003 07868 5406 5
The Imagineering Way 2003 0 7868 5401 4
The Haunted Mansion 2003 07868 5419 7
The Art of Walt Disney 2004 I 85227 230 9 4th ed