Guthe & E Carl. (1945). Manual for the study of food habits: Report of the committee on food habits. National academy of science.
استشهاد بنمط شيكاغوGuthe و E Carl. Manual for the Study of Food Habits: Report of the Committee on Food Habits. National academy of science, 1945.
MLA استشهادGuthe و E Carl. Manual for the Study of Food Habits: Report of the Committee on Food Habits. National academy of science, 1945.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.