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Book summary

Serendipity:

• Labor in the Puerto Rican Economy : Postwar Development and Stagnation by Carlos E. Santiago (9780275941352)
• Florence Sabin: Scientist by Robin Campbell (9780791022917)
• Tertium Organum Or The Third Canon Of Thought And A Key To The Enigmas Of The World by P.D. Ouspensky (9781417910960)