Amazon Planet, by Mack Reynolds. A "Section G" book featuring agent Ronny Bronston. Amazonia had a reputation for strangeness even among the zany worlds of the United Planets Federation. It was ruled by a fearsome military caste - made up exclusively of women. When Guy Thomas arrived he was allowed the privilege of landing only because he offered profitable trade agreements to the government. His real plans were fulfilled by his secret meetings with the male liberationist revolutionary group - The Sons of Liberty. But as he became more involved, he got the feeling that something was wrong with the whole setup - and that he wasn't going to like the truth at all... This was serialized in Analog in December 1966 to Februay 1967; this is the 1st American paperback.