B. Manag. Q.137
| List-I (School) | List-II (Period) |
| (a) Classical theory | 1. 1890-1930 |
| (b) Behavioral theory | 2. 1930-1960 |
| (c) System theory | 3. 1960-up to date |
| (d) Contingency theory | 4. 1965 |
| List-I (School) | List-II (Period) |
| (a) Classical theory | 1. 1890-1930 |
| (b) Behavioral theory | 2. 1930-1960 |
| (c) System theory | 3. 1960-up to date |
| (d) Contingency theory | 4. 1965 |
