Swimming Pool Data and Reference Manual—1951 (19th ed.)

Por Klassen, C. W.
Publicado em 1951

Essentials of an Effective State Plan and Program of Activities for Flood Sanitation

Por Klassen, C. W., Miller, Arthur P.
Publicado em 1938

Proposed Report of the Committee on Administrative Practice on Interstate Acceptance of Milk

Por Klassen, C. W., Beck, Arthur N., Corash, Paul, Faulkner, John D., Tiedeman, W. D., Weckel, K. G., Williams, Huntington
Publicado em 1954