Insight :
a study of human understanding.

APA Citation

Lonergan, B. J. F. (1961). Insight: a study of human understanding. [London: Longmans.

MLA Citation

Lonergan, Bernard J. F. Insight: a Study of Human Understanding. [London: Longmans, 1961.

Warning: These citations may not always be complete (especially for serials).