text nyu New York Independent Corporation. 1919 ---- monographic eng 7 v. 1 v. How to measure your effciency.- 2 v. How to get ahead.- 3 v. How to keep well.- 4 v. How to improve your finances.- 5 v. How to organize your work.- 6 v. How to be efficient at home.- 7 v. How to plan your life. Earle Purinton, Edward. Son 6.v.; elv.2. está en P43A H162 Éxito Eficiencia Personal Efficiency BJ1611 .P87 220311 20190320205252.0 BRCA_5931