APA (7. basım) Alıntı

Highsmith, R. M., & Northam, R. M. (1968). World economic activities; a geographic analysis: By Richard M. Highsmith and Ray M. Northam. Brace & World.

Chicago Style (17. basım) Atıf

Highsmith, Richard Morgan, ve Ray M. Northam. World Economic Activities; a Geographic Analysis: By Richard M. Highsmith and Ray M. Northam. New York, Harcourt: Brace & World, 1968.

MLA (9th ed.) Atıf

Highsmith, Richard Morgan, ve Ray M. Northam. World Economic Activities; a Geographic Analysis: By Richard M. Highsmith and Ray M. Northam. Brace & World, 1968.