Ball, J. M., Steinbrink, J. E., & Stoltman, J. P. (1971). The social sciences and geographic education: A reader. John Wiley.
Chicago Style (17. basım) AtıfBall, John M., John E. Steinbrink, ve Joseph P. Stoltman. The Social Sciences and Geographic Education: A Reader. Nueva York: John Wiley, 1971.
MLA (9th ed.) AtıfBall, John M., et al. The Social Sciences and Geographic Education: A Reader. John Wiley, 1971.
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