Mental deficiency

MLA

Hillard, L. T, and Brian H Kirman. Mental Deficiency. London: Churchill, 1957.

APA

Hillard, L. T, & Kirman, B. H. (1957). Mental deficiency. London: Churchill.

Chicago

Hillard, L. T., and Brian H Kirman. Mental Deficiency. London: Churchill, 1957.