Resonance in organic chemistry. Wheland, George Willard, 1907- Mesomerism. Chemistry, Physical and theoretical. Chemistry, Organic. QD471 .W57 1955 544 WHR A revision and expansion of the author's The Theory of resonance and its application to organic chemistry. Bibliography: p. 785-799. Bibliographical footnotes. New York : Wiley, 1955. 1955. 1955 Text 846 p. : eng