David Halberstam, a Pulitzer Prize-winning writer who chronicled the Vietnam War generation, civil rights and the world of sports, was killed in a car crash Monday, his wife and local authorities said. He was 73. Halberstam, who lived in New York and Nantucket, Mass., was a passenger in a car that was broadsided by another vehicle in Menlo Park, south of San Francisco, San Mateo County Coroner Robert Foucrault said. He said the cause of death had not been determined but appeared to be internal injuries. His classic baseball book, "Summer of '49," was published in 1989 and chronicled the famed pennant race between the Red Sox and Yankees. The 1999 book "Playing for Keeps" looked at Michael Jordan phenomenon. His most recent work, 2001's "The Education of a Coach" provides an inside look into Patriots coach Bill Belichick.