The numerical proportions of the sexes at birth
By: by John Benjamin Nichols
Series: Memoir of the American Anthropological Association -- v. 1, pt. 4; Memoirs of the American Anthropological Association -- no. 1, pt. 4.
Publisher: Kraus Reprint
Published: 1964
Place of publication: New York
Language: eng
Number of pages: 300
Subjects: Sex; Statistics; Vital statistics