Clarke JIClarke / John Innes Clarke / John Innes-Clarke
Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Discusses how the ratio between the numbers of males and females changes. This book shows how medical interventions and the looming prospect of sex selection at birth will affect the rough balances in the numbers of men and women. It describes various problems associated with the changing balances of births, deaths and mobility of the two sexes.