Horwood, M. P. (1921). Public health surveys: What they are, how to make them, how to use them. John Wiley & sons, inc.; [etc., etc.].
Lua i Stíl Chicago (17ú heag.)Horwood, Murray Philip. Public Health Surveys: What They Are, How to Make Them, How to Use Them. New York: John Wiley & sons, inc.; [etc., etc.], 1921.
Lua MLA (8ú heag.)Horwood, Murray Philip. Public Health Surveys: What They Are, How to Make Them, How to Use Them. John Wiley & sons, inc.; [etc., etc.], 1921.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.