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Dyfyniad Arddull ChicagoPetimar, Joshua, et al. "Changes in the Calorie and Nutrient Content of Purchased Fast Food Meals After Calorie Menu Labeling: A Natural Experiment." PLoS Med 2021.
Dyfyniad MLAPetimar, Joshua, et al. "Changes in the Calorie and Nutrient Content of Purchased Fast Food Meals After Calorie Menu Labeling: A Natural Experiment." PLoS Med 2021.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.