Dyfyniad APA

Letchworth, W. P. (1889). The insane in foreign countries. G. P. Putnam's sons.

Dyfyniad Arddull Chicago

Letchworth, William Pryor. The Insane in Foreign Countries. New York & London: G. P. Putnam's sons, 1889.

Dyfyniad MLA

Letchworth, William Pryor. The Insane in Foreign Countries. G. P. Putnam's sons, 1889.

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