Light shelfwear to edges and boards. DJ covered with mylar. Pages tight and clean. Library discard with usual marks and attachments. Pocket and ffep removed. 273 pages. HardCover Binding. Year: 1972. ISBN: 0670302686. By interweaving science exposition within the framework of a science-fiction parable, the author has a startling and witty book that will help the American public face the momentous questions implicit in population control-a goal which means restricting some human freedoms in order to preserve others.