Health education of the public a practical manual of technic

Xehetasun bibliografikoak
Egile nagusia:	Bauer William Waldo 1892-
Beste egile batzuk:	Hull, Thomas Gordon 1889-
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	Philadelphia Saunders c1937
Gaiak:	Adult education. Public health > Study and teaching.