Deismireacht APA

Ritchie, J. W. (1910). The Teaching of Hygiene and Sanitation in the Schools.

Citação norma Chicago

Ritchie, John W. The Teaching of Hygiene and Sanitation in the Schools. 1910.

Deismireacht MLA

Ritchie, John W. The Teaching of Hygiene and Sanitation in the Schools. 1910.

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