著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
International Astronomical Union. Colloquium and International Astronomical Union and COSPAR,"The study of comets : the proceedings of IAU Colloquium no. 25, held at Goddard Space Flight Center, Greenbelt, Maryland, October 28-November 1, 1974",,"Scientific and Technical Information Office, National Aeronautics and Space Administration",1976,NASA SP,,,,https://cir.nii.ac.jp/crid/1130019890131620616