TY  - BOOK
AU  - Von Bertalanffy, Ludwig 
TI  - General system theory : : foundation, development, applications 
SN  - 9780807600153 Pbk.Np..
AV  - Q 295 V66 1969 CASAT 
PY  - 1969///
CY  - New York : 
PB  - George Braziller, Inc.
KW  - System theory
KW  - Unified field theories
N1  - Includes bibliographical references and index
ER  -