New developments in research into the gravitational and temperature effects produced by metronomic variations of the Earth-Moon system and Earth-Sun orbital patterns which can be used for short-term age determination.
There are currently no reviews for this product. Be the first to review this product!
Your orders support book donation projects
NHBS is one of my favorite vendors.
Search and browse over 110,000 wildlife and science products
Multi-currency. Secure worldwide shipping
Wildlife, science and conservation since 1985