APA (7th ed.) Citation

Langbein, L. I., & Lichtman, A. J. (1978). Ecological inference. Sage.

Chicago Style (17th ed.) Citation

Langbein, Laura Irwin, and Allan J. Lichtman. Ecological Inference. Beverly Hills, California: Sage, 1978.

MLA (9th ed.) Citation

Langbein, Laura Irwin, and Allan J. Lichtman. Ecological Inference. Sage, 1978.