Παραπομπή σε μορφή APA (7η εκδ.)

De Guzman, L. S. (1970). A study of the present situation of children and youth in the Philippines. National Science Development Board.

Παραπομπή σε μορφή Chicago (17η εκδ.)

De Guzman, Leonora S. A Study of the Present Situation of Children and Youth in the Philippines. Quezon City: National Science Development Board, 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

De Guzman, Leonora S. A Study of the Present Situation of Children and Youth in the Philippines. National Science Development Board, 1970.