Earth Our Crowded Spaceship

*earth our crowded spaceship : Discusses the problems faced by the Earths inhabitants as population increases and energy sources, food, and land become more scarce.* * * * * * exemplar usado em bom estado de conservação – 172 paginas + index * ilustrado * texto integro sem grifos * corte amarelado pela ação natural do tempo *- * * * * * * *