Παραπομπή σε μορφή APA (7η εκδ.)

Primary Source Microfilm (Firm) & Gale Group. (1970). International population census publication. Primary Source Microfilm an imprint of the Gale Group.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Primary Source Microfilm (Firm) και Gale Group. International Population Census Publication. [Woodbridge, Conn.]: Primary Source Microfilm an imprint of the Gale Group, 1970.

Παραπομπή σε μορφή MLA (8th εκδ.)

Primary Source Microfilm (Firm) και Gale Group. International Population Census Publication. Primary Source Microfilm an imprint of the Gale Group, 1970.