A well-known book among entomologists, "Insects of the World" by Walter Linsenmaier (Mcgraw-Hill, June 1972) makes repeated appearances during the last 30 minutes of this Kojak episode, starting at 28 minutes/30 seconds into the episode, then later the book is examined by the lieutenant when he's sitting in Kojak's office, and its then in the background of the final scene with Kojak in his office. The book is never mentioned in the episode.