Research Publications, inc, & Primary Source Microfilm (Firm). (1970). International population census publications. Research Publications.
Chicago-viite (17. p.)Research Publications, inc, ja Primary Source Microfilm (Firm). International Population Census Publications. Woodbridge, Conn.: Research Publications, 1970.
MLA-viite (8. p.)Research Publications, inc, ja Primary Source Microfilm (Firm). International Population Census Publications. Research Publications, 1970.
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