Text ( visual ) : unmediated The anatomy of professional literature : a bibliography of books in health, physical education, recreation, safety, camping, and the allied fields from 1930 to 1950 / D.B. Van Dalen. -- Pittsburgh : D.B. Van Dalen , 1950. -- vii, 148 p. ; 22 cm. -- (BA91753741) ; https://ci.nii.ac.jp/ncid/BA91753741 Author Heading(s): Van Dalen, Deobold B.. -- Classification(s): LCC : Z6673 ; DC : 016.613. -- Subject Heading(s): LCSH : Public health -- Bibliography ; LCSH : Hygiene -- Bibliography