Παραπομπή σε μορφή APA (7η εκδ.)

United States. Information Agency. (1960). USA, its geography and growth. s.n.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States. Information Agency. USA, Its Geography and Growth. s.n, 1960.

Παραπομπή σε μορφή MLA (9th εκδ.)

United States. Information Agency. USA, Its Geography and Growth. s.n, 1960.