TY  - BOOK
AU  - Koch, Richard.
TI  - The 80/20 principle
SN  - 978-0-385-49174-7
AV  - MAIN HD 69.T54 
CY  - New York
KW  - Industrial efficiency -- Psychological aspects
KW  - Time management
KW  - Conduct of life
KW  - Labor productivity -- Psychological aspects
N1  - Includes bibliographical references and index
ER  -