TY  - GEN
AU  - Friedrich, Lawrence William, 1912- ed.
TI  - The nature of physical knowledge. 156 p. 21 cm
AV  - QC 6 .F75 
KW  - Physics--Philosophy--Congresses. 60-13219//r85
KW  - Includes bibliographical references
N1  - A symposium held under the auspices of the American Physical Society at its meeting in Milwaukee in 1959
ER  -