APA Format
Roemer, Milton I.
. (1991). National health systems on the world, Vol. 1 : the countries. New York : Oxford University Press
MLA Format
Roemer, Milton I.
. National health systems on the world, Vol. 1 : the countries. New York : Oxford University Press, 1991
Australian/Harvard Format
Roemer, Milton I.
. 1991. National health systems on the world, Vol. 1 : the countries. Oxford University Press, New York
Warning: These citations may not always be 100% accurate.