APA (7th ed.) Citation

Langbein, L. I., Langbein, L. I., & Lichtman, A. J. (1978). Ecological inference Sage University papers / Quantitative applications in the social sciences.

Chicago Style (17th ed.) Citation

Langbein, Laura Irwin, Laura I. Langbein, and Allan J. Lichtman. "Ecological Inference." Sage University Papers / Quantitative Applications in the Social Sciences 1978.

MLA (8th ed.) Citation

Langbein, Laura Irwin, et al. "Ecological Inference." Sage University Papers / Quantitative Applications in the Social Sciences, 1978.