Planning natural resources
Gupta, Raj Kumar
Planning natural resources a handbook of aerospace techniques for integrated surveys and studies in natural resouce ecology - New Delhi Navayug Traders Booksellers & Publishers 1971 - 269p.
Natural resources
551.588 / GUP-E
Planning natural resources a handbook of aerospace techniques for integrated surveys and studies in natural resouce ecology - New Delhi Navayug Traders Booksellers & Publishers 1971 - 269p.
Natural resources
551.588 / GUP-E