APA (7th ed.) Citation

Prehn, S., & Brümmer, B. (2011). Estimation issues in disaggregate gravity trade models.

Chicago Style (17th ed.) Citation

Prehn, Søren, and Bernhard Brümmer. Estimation Issues in Disaggregate Gravity Trade Models. Göttingen, 2011.

MLA (9th ed.) Citation

Prehn, Søren, and Bernhard Brümmer. Estimation Issues in Disaggregate Gravity Trade Models. 2011.

Warning: These citations may not always be 100% accurate.