(Again, if the authors' names appear parenthetically rather than in the text itself, connect the final two names with a comma and an ampersand). In all subsequent citations, include only the name of the first author followed by et al. (the abbreviation for the Latin phrase meaning and others):
Grapes are a source of vitamins, with each cup providing 13.4 micrograms of vitamin K, or 17 percent of the daily value; 3.7 milligrams of vitamin C and 0.09 milligrams of thiamine, or six percent of the daily value for each of the latter two nutrients; and 0.1 milligrams of vitamin B-6, or five percent of the DV.hile red seedless grapes aren't a great source of minerals, they do provide 176 milligrams of potassium, or five percent of the DV, per one-cup serving, as well as smaller amounts of magnesium, zinc, iron, calcium and phosphorus.
Half of a large grapefruit contains 57.1 mg of vitamin C, a nutrient that plays a critical role in forming collagen and repairing your body's tissues, according to MedlinePlus.