International Sanitary Conference Washington. (1881). Proceedings of the International Sanitary Conference: Provided for by joint resolution of the Senate and House of Representatives in the early part of 1881. Govt. Print. Off..
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)International Sanitary Conference Washington. Proceedings of the International Sanitary Conference: Provided for by Joint Resolution of the Senate and House of Representatives in the Early Part of 1881. Washington: Govt. Print. Off., 1881.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)International Sanitary Conference Washington. Proceedings of the International Sanitary Conference: Provided for by Joint Resolution of the Senate and House of Representatives in the Early Part of 1881. Govt. Print. Off., 1881.
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