Fubo no nenrei to shusshō to no kankei
By: Naikaku Tōkeikyoku
Series: Chōsa shiryō -- dai 1-shū; Chōsa shiryō (Japan. Naikaku Tōkeikyoku) -- dai 1-shū.
Publisher: Tōkyō Tōkei Kyōkai
Published: 1927
Place of publication: Tōkyō
Language: jpn
Number of pages: 55
Subjects: Human Fertility; Human reproduction; Age factors; Parenthood; Psychological aspects
Notes: Cover title.