Original sentence: His magazine credits include Playboy, McCalls, Barron's, Gourmet, Ambassador, True, Mademoiselle, Reader's Digest and TV Guide; his newspaper credits include The New York Times;The Washington Post, The San Francisco Examiner, The Christian Science Monitor and the International Herald Tribune
Edited sentence: His magazine credits include Playboy, McCalls, Barron's, Gourmet, Ambassador, True, Mademoiselle, Reader's Digest and TV Guide; his newspaper credits include The New York Times;The Washington Post, The San Francisco Examiner, The Christian Science Monitor and International Herald Tribune (for which he was a major contributor of features during the 1970s)