APA (7th ed.) Citation

Research Publications, inc, & Primary Source Microfilm (Firm). (1970). International population census publications. Research Publications.

Chicago Style (17th ed.) Citation

Research Publications, inc, and Primary Source Microfilm (Firm). International Population Census Publications. New Haven, Conn.: Research Publications, 1970.

MLA (8th ed.) Citation

Research Publications, inc, and Primary Source Microfilm (Firm). International Population Census Publications. Research Publications, 1970.