Population.  Differential fertility, 1940 and 1910.  Fertility by duration of marriage
Subtitle: based upon tabulations from the sixteenth and thirteenth censuses of the United States: 1940 and 1910.
By: [Prepared by Wilson H. Grabill]
Contributors: Grabill, Wilson H.
Publisher: U. S.  Govt. Print. Off.
Published: 1947
Place of publication: Washington
Language: eng
Number of pages: 338
Subjects: Fertility, Human.; United States -- Statistics, Vital.