Παραπομπή σε μορφή APA (7η εκδ.)

Nigeria. (1956). Statement of the policy proposed by the government of the Federation for the establishment of an Inland Waterways Department. Federal Govt. Printer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nigeria. Statement of the Policy Proposed by the Government of the Federation for the Establishment of an Inland Waterways Department. Lagos: Federal Govt. Printer, 1956.

Παραπομπή σε μορφή MLA (8th εκδ.)

Nigeria. Statement of the Policy Proposed by the Government of the Federation for the Establishment of an Inland Waterways Department. Federal Govt. Printer, 1956.