Hartson, M. G. (1946). A study of the influence of color on the preschool child's selection of certain cooked vegetables during the noon lunch program at the Pennsylvania State College Nursery School: A thesis.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Hartson, Margaret Grace. A Study of the Influence of Color on the Preschool Child's Selection of Certain Cooked Vegetables During the Noon Lunch Program at the Pennsylvania State College Nursery School: A Thesis. 1946.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Hartson, Margaret Grace. A Study of the Influence of Color on the Preschool Child's Selection of Certain Cooked Vegetables During the Noon Lunch Program at the Pennsylvania State College Nursery School: A Thesis. 1946.
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