TY - BOOK AU - Vincenti,Walter G. TI - What engineers know and how they know it: analytical studies from aeronautical history SN - 0801839742 (alk. paper) AV - TL515 .V44 1990 U1 - 629.13/09 20 PY - 1990/// CY - Baltimore PB - Johns Hopkins University Press KW - Aeronautics KW - History N1 - Includes bibliographical references (p. [259]-318) and index ER -