Παραπομπή σε μορφή APA (7η εκδ.)

Koenig, N. (1961). The economic needs of American Samoa: Study made for the Committee on Interior and Insular Affairs, United States Senate. U.S. Government Printing Office.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Koenig, Nathan. The Economic Needs of American Samoa: Study Made for the Committee on Interior and Insular Affairs, United States Senate. Washington: U.S. Government Printing Office, 1961.

Παραπομπή σε μορφή MLA (8th εκδ.)

Koenig, Nathan. The Economic Needs of American Samoa: Study Made for the Committee on Interior and Insular Affairs, United States Senate. U.S. Government Printing Office, 1961.