Phantom Zone appears in 9 issues in this volume.
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Issue #89
Superboy's Big Brother
June 1961
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Issue #104
The Kid Who Kayoed Superboy ; The Untold Story of the Phantom Zone!
April 1963
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Issue #109
The Super-Dog That Replaced Krypto!
December 1, 1963
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Issue #115
The Atomic Superboy!
September 1964
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Issue #117
Secret of Camp Storm King!
December 1, 1964
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Issue #121
Clark Kent's Single Identity; Jor-El's Visit to Earth!
June 1965
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Issue #128
The Twilight World of No Return!
April 1, 1966
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Issue #165
Superboy's Red Letter Days
June 1970
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Issue #185
DC 100 Page Super Spectacular DC-12
May 1972
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