Carl Sagan's criticisms of Worlds in Collision
Worlds in Collision, the subject of Carl Sagan's criticisms
Scientists Confront Velikovsky, in which Carl Sagan's AAAS paper first appeared.
Broca's Brain also includes a version of Carl Sagan's AAAS paper.
Astronomer Carl Sagan criticized the ideas in Immanuel Velikovsky's book, Worlds in Collision, presenting them as "Ten Problems" in:
1974 AAAS conference, Velikovsky's Challenge to Science as "An Analysis of 'Worlds in Collision'"
1977 conference proceedings, Scientists Confront Velikovsky as "An Analysis of 'Worlds in Collision'"
1979 Carl Sagan's own book, Broca's Brain as "Venus and Dr. Velikovsky"