On Formally Undecidable Propositions of Principia Mathematica ...
Kurt Gödel
CIA Briefings of Presidential Candidates
John L. Helgerson
Twentieth-Century Analytic Philosophy
Avrum Stroll
Philosophical Dialectics: An Essay on Metaphilosophy
Nicholas Rescher
An Introduction to Fuzzy Sets
Valdemar F. Andersen
Children's Ways of Knowing: Nathan Isaacs on Education, Psychology, ...
Nathan Isaacs
Young Children Reinvent Arithmetic: Implications of Piaget's ...
Constance Kamii & Leslie Baker Housman
Improving Instruction in Geometry and Measurement
Margaret Schwan Smith & Edward A. Silver & Mary Kay Stein
Interviewing as Qualitative Research: A Guide for Researchers ...
Irving Seidman