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Good book on this by Dr. Christopher Tucker: A Planet of 3 Billion https://alumni.columbia.edu/content/planet-3-billion https://alumni.columbia.edu/content/plan
by unclemase 6y ago
Good book on this by Dr. Christopher Tucker: A Planet of 3 Billion https://alumni.columbia.edu/content/planet-3-billion https://alumni.columbia.edu/content/planet-3-billion