APA

Gil J., Gracia E., .A comparison of the usa health care effort with other OECD countries. : .

Chicago

Gil Joan, Gracia Eduard, .A comparison of the usa health care effort with other OECD countries. : .

Harvard

Gil J., Gracia E., .A comparison of the usa health care effort with other OECD countries. : .

MLA

Gil Joan, Gracia Eduard, .: . .