Beef and Three-Bean Salad

Original source: sheknows.com

Ingredients:
1 (15-ounce) can black beans, rinsed and drained
1 (15-ounce) can kidney beans, rinsed and drained
1 (15-ounce) can cannellini beans, drained and rinsed
1 green bell pepper, seeded, chopped
1 red bell pepper, seeded, chopped
1 (10-ounce) package frozen corn kernels
1 red onion, chopped
1/2 cup olive oil
1/2 cup red wine vinegar
2 tablespoons fresh lime juice
1 tablespoon fresh lemon juice
2 tablespoons white sugar
1 tablespoon salt
1 clove garlic, crushed
1/4 cup chopped fresh cilantro
1/2 tablespoon ground cumin
1/2 tablespoon freshly ground black pepper
1 dash hot pepper sauce
1/2 teaspoon chili powder