Godwin, William. <br/><br/>
Of population: An inquiry concerning the power of increase in the numbers of mankind. 

 - London :  Augustus M.Kelly,  1964. 
<br/><br/> The examines fertility and productivity among human beings. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population census.<br/>Demography -- Population increase -- Population size//Population dynamics/.--Demography -- Population increase -- Population size//Population dynamics/.--Demography -- Population increase -- Population size//Population dynamics/.