Boyd and Asimov's classification of the major clines by blood typeLink informatics for "Boyd and Asimov's classification of the major clines by blood type"C O N T E N T SSee AlsoThe seven major races of the world, on the basis of inheritable characteristics (mostly blood groups).(1) References1. Boyd, WC and Asimov, I. Races and People. Abelard-Schuman, New York. 1955 |