Seibutsu kisetsu ni kansuru kaisetsu shiryō
Subtitle: chiikibetsu ni mita shokubutsu kisetsu
Series: Kaisetsu shiryō -- dai 16-gō
Publisher: Kishōchō Kansokubu
Published: 1989
Place of publication: [Tokyo]
Language: jpn
Number of pages: 77
Subjects: Biological rhythms
Notes: Cover title.