Dyfyniad APA

English member. (1909). Preventive hygiene: An account of the Brussels international conferences, 1899 and 1902 (3rd and enl. ed.). Hazell, Watson & Viney.

Dyfyniad Arddull Chicago

English member. Preventive Hygiene: An Account of the Brussels International Conferences, 1899 and 1902. 3rd and enl. ed. London: Hazell, Watson & Viney, 1909.

Dyfyniad MLA

English member. Preventive Hygiene: An Account of the Brussels International Conferences, 1899 and 1902. 3rd and enl. ed. Hazell, Watson & Viney, 1909.

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