PenBlock is a virtual bookshelf for readers and authors.

Conceptual Structures: Information Processing in Mind and Machine (Systems Programming Series)

John F. Sowa
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Gravitation Theory and Gravitational Collapse

B.Kent Harrison,Kip S.Thorne,Masami Wakano,John Archibald Wheeler
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The Age Of Turbulence is Alan Greenspan’s incomparable reckoning with the contemporary financial world, channeled through his own experiences working in the command room of the global economy longe

Alan Greenspan
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In Porsche 911: 50 Years, bestselling author Randy Leffingwell celebrates a half-century of one of the world’s premiere sports cars, focusing on the major themes that have defined Porsche's rear-en

Randy Leffingwell
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Most literature pertaining to carbon fibers is of a theoretical nature.

Peter Morgan
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Essential Skills--Made Easy! Learn the fundamentals of Java programming in no time from bestselling programming author Herb Schildt.

Herbert Schildt
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A History of Interest Rates presents a very readable account of interest rate trends and lending practices over four millennia of economic history.

Sidney Homer,Richard Sylla
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Take advantage of Drupal’s vast collection of community-contributed modules and discover how they make this web framework unique and valuable.

Angela Byron,Addison Berry,Bruno De Bondt
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