Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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.

Παραπομπή σε μορφή MLA (8th εκδ.)

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.