Who has more scope of profession, Juan José Campanella or Robert Z. Leonard?
Robert Z. Leonard Robert Zigler Leonard (October 7, 1889 – August 27, 1968) was an American film director, actor, producer, and screenwriter.
Robert Zajonc Robert Bolesław Zajonc ( ; Polish: ; November 23, 1923 – December 3, 2008) was a Polish-born American social psychologist who is known for his decades of work on a wide range of social and cognitive processes. A "Review of General Psychology" survey, published in 2002, ranked Zajonc as the 35th most cited psychologist of the 20th century.