Combine first 5 ingredients in a small saucepan; bring to a boil. Cover, reduce heat, and simmer 10 minutes.
Drain, reserving citrus rind.
Combine citrus rind, citrus juices, broth, wine, and sugar in a small bowl; stir well, and set aside.
Sprinkle salt and pepper over chicken.
Heat margarine in a large nonstick skillet over medium-high heat.
Add chicken; cook 3 minutes on each side.
Add juice mixture; cover, reduce heat, and simmer 35 minutes.
Remove chicken from skillet with tongs or a slotted spoon; set aside, and keep warm.
Combine vinegar and cornstarch; stir well.
Add cornstarch mixture to juice mixture in skillet; simmer, uncovered, 10 minutes or until thickened and slightly reduced, stirring constantly. Spoon sauce over chicken.