APA aipamena

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

Chicago Style aipamena

Langbein, Laura, and Allan Lichtman. Ecological Inference. California: Sage, 1978.

MLA aipamena

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