61
Match the following:
| List-I (Theory) | List-II (Year) |
| (a) Theory X and Theory Y | 1. 1960 |
| (b) Hawthorne studies | 2. 1939 |
| (c) Neo-classical Behavioural Science Approach | 3. 1930 |
| (d) Organizational efficiency | 4. 1947 |
| 5. 1950 |

