Update my answer to Exercise 2.66.

Modified are the following file:

	Exercise_2.66.scm

Thank you!
							Lawrence X. Amlord
							  Sept 29th, 2013
							  Xi'an, China
Add the code in section 3.3.3.

Included is the following file:

	3.3.3_Representing_Tables.scm

Thank you!
							Lawrence X. Amlord
							  Sept 29th, 2013
							  Xi'an, China