Detail Maritime Wealth: How Much? For How LOng?   Oleh:  Christy, Francis T. Jenis: Article from Bulletin/Magazine Dalam koleksi: Economic Impact no. 4 (1973), page 41-47. Topik: Maritime; Ocean; Fish; World Population Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE6.6 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Seventy-one per cent of the earth's surface is covered by the oceans of the world-a vast untouched area containing fantastic quantities of materials useful to man. It is often pointed out that the yield of fish from the sea might be as high as two even four thousand million tons per year-40 to 80 times our present catch and enough to feed a world population many times in present size. It is also pointed out that the seas' waters contain six million tons of iron. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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