The A. B. C. Murders. Ammonoid Shell Microstructure. IN Landman, Neil H., Kazushige Tanabe, and Richard Arnold Davis, editors. Plenum Press, New York. Plenum Press, New York.
Errors do occur.
Computerized bibliographic databases are especially subject to such problems. Strictly speaking, web-sites are not publications and, hence, should not be cited in formal bibliographies. A problem with web-sites is that they are subject to constant change. Thus, the date and time you saw it are especially important. There does not seem to be a generally accepted format of citing web-pages.