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CUSIP No. ▇▇▇▇▇▇▇▇▇ 13G Page 8 of 12 Pages
EXHIBIT 1 TO SCHEDULE 13G
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June 10, 1997
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▇▇▇▇▇▇ ▇▇▇▇▇▇▇ GROUP INC., ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ & ▇▇▇▇▇▇▇▇ LLP
and Commonwealth of Pennsylvania State Employees Retirement
System hereby agree that, unless differentiated, this Schedule 13G
is filed on behalf of each of the parties.
BY: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇
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▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ & ▇▇▇▇▇▇▇▇ ▇▇▇
▇▇▇▇▇▇ ▇. ▇▇▇▇/Vice President ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ Asset Management Inc.
BY: /s/ ▇▇▇▇▇ ▇▇▇▇▇▇▇▇
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▇▇▇▇▇▇ ▇▇▇▇▇▇▇ Group Inc.
▇▇▇▇▇ ▇▇▇▇▇▇▇▇/▇▇▇▇▇▇ ▇▇▇▇▇▇▇ & Co., Incorporated
BY: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇
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Commonwealth of Pennsylvania State Employees Retirement System
▇▇▇▇▇▇ ▇. ▇▇▇▇/Vice President ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ Asset Management Inc.
