Science · Book Selection
पुस्तक चयन के 'मांग और आपूर्ति' (Demand and Supply) सिद्धांत का प्रतिपादन किसने किया था?
- 1फ्रांसिस ड्रूरी
- 2मेल्विल डेवी
- 3एल. आर. मैकॉल्विन✓
- 4एस.आर. रंगनाथन
सही उत्तर देखें
एल. आर. मैकॉल्विन
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